Air purifier?

[mikeeeey]

OEM of Sharp

 

[spark7]

ok, bought 1 box to test. Sending from Shanghai to SZ via 圆通。
人民币59， got rmb 5 voucher and dunno what auto-promotion during checkout. RMB 52.5 which is inclusive of shipping.

Great value. Great convenience due to pre-cut + double sided tape.

If air con mesh is those sliding type like starmex, I think cannot use

 

[WussRedXLi]

I think some of you may know that I changed out the original Samsung AX40 filter in early Dec 2014 after last year's season. Now also due to change out the Taobao HEPA after 6 months usage in the Samsung AX40.

6 months of supposedly clean haze-free Singapore air. This is how it looks. Taken from handphone, unprocessed. Notice that the top left corner has clean white areas that did not get to filter the air.

 

[Zabiyaki]

ok, bought 1 box to test. Sending from Shanghai to SZ via 圆通。
人民币59， got rmb 5 voucher and dunno what auto-promotion during checkout. RMB 52.5 which is inclusive of shipping.

Great value. Great convenience due to pre-cut + double sided tape.

Freeship issit?
Just tick the 海外 option

 

[chuanz]

Freeship issit?
Just tick the 海外 option

No such thing as 海外 free ship in TB. Many sellers put RMB0 for overseas coz they don't ship overseas at all. That's just the way things work in TB.

 

[laironpark]

3M Fitrete FAP02-RS-2C-A

Narrowed down my search to Novita, Sharp, and Samsung. Can someone assist in telling me which of these three is replacement filter easily available in stores or online? Also, saw this 3M air purifier selling online: 3M Fitrete FAP02-RS-2C-A. Can anyone who had bought and used this before comment on this unit? Thanks.

 

[WussRedXLi]

Narrowed down my search to Novita, Sharp, and Samsung. Can someone assist in telling me which of these three is replacement filter easily available in stores or online? Also, saw this 3M air purifier selling online: 3M Fitrete FAP02-RS-2C-A. Can anyone who had bought and used this before comment on this unit? Thanks.

Ｉhave DIYed the 3M electrostatic filters to fit into my Samsung KC-840 before. They are all the same stuff. Basically in SG air quality/room context, after 6 weeks ineffective liao. 　In fact, when I switched it on after that period of time, immediately I sneeze and have that soul/numb feeling at the top of my nose, and know my allergic rhinitis kena triggered liao. Probably the initial airflow burst dislodged some good amt of dust particles with mites faeces (allergens) or something.

Advise you to go HEPA.

Sharp filters are readily available on taobao. Key is you need to be able to purchase from TB, which is not very difficult. Sharp is quite widely available in China, weird as it seems (CN hates JP).

Samsung can also get easily, customise the filter with exact dimensions. A more difficult way coz need to IM (阿里汪汪）the seller.
I use this seller for customisation. Don't mind the link, it's not the link to any product, just a reference to the shop. You can choose other sellers as well.

I have tested the HEPAs before with my laser particle counter, quality is ok. Just take it that the performance drop in the room in real life is not noticeable in a Indon haze situation.

 

[WussRedXLi]

Freeship issit?
Just tick the 海外 option

Freeship to all eastern china addresses.

Then you forward it to SG. I recommend 4PX for reliability and quality of service. They do answer your queries rather promptly on aliwangwang and do not patronise you or give you stupid answers.
https://jennyteo.wordpress.com/2013/10/29/taobao-shopping-singapore/

 

[WussRedXLi]

Public Service Announcement :

Was participating in the other thread about Funtasy Island bungalows on stilts off the western coast of Batam facing the Straits of Malacca. These houses are barely 2m above sea level at high tide.

Found some interesting info regarding tsunamis. Not fear-mongering, this is really rare....but PSI 401 is also rare (no mention at all before that) and the gahment/NEA were all caught pants down.

Will not affect SG in a very big way, it's definitely rare so I don't think people would have the time or experience to react, ie the water level recedes back into the sea before the waves hit, and also the biggest wave is not the first wave. Hence people are usually fooled by this spectacle.
You and your family might even be overseas on a beach in Hainan island, there is this Philippine megathrust plate etc. Or you could be contemplating to buy an overseas property by the beach.

 

[WussRedXLi]

This was what happened to Malaysia in 2004. Fatalities in Selangor is also in the death toll list? (also as mentioned you don't need a sizeable tsunami to mess up all your décor, wood like particle-board/MDF easily bloats even when briefly exposed to water)

http://www.drgeorgepc.com/Tsunami2004Indonesia.html


And finally, do check this out with regards to tsunami risks to Pennsula Malaysia :
ftp://www.geo.puc.cl/geo/mlagoslo/M...ations/Bun_MMD__Tsunami_risk_ass_Malaysia.pdf


MALAYSIA

Despite Malaysia's proximity to the tsunami generating area, the impact of the waves was not as severe as in other countries in the region or countries thousands of kilometers away. Malaysia was partly sheltered by Sumatra and the tsunami waves attenuated somewhat in the Straits of Malacca. However, there were numerous deaths and destruction reported. The country's worst affected areas were the northern coastal areas and the outlying islands. Hardest hit were Penang,Kedah, Perak, Selangor and Langkawi. It was reported that the red flag warning system used by lifeguards on beaches in some resort areas in Penang helped reduce fatalities there. Houses in fishing villages along coastal areas were damaged in Batu Maung and Bayan Lepas in Penang. Coastal areas in Peninsular Malaysia e.g. 13 villages in Kuala Muda, Kedah and Kuala Triang in Langkawi island were also affected. About a quarter of the boats anchored in Rebak and Telaga harbour in Langkawi were damaged. The number of deaths currently stands at 68 with 52 in Penang, 10 in Kedah, 3 in Perak and 1 in Selangor. Another 6 are missing.



Furthermore - and though the stress in the region off Northern Sumatra has been released by the 26 December 2004 earthquake - this does not necessarily mean that another earthquake further north or further south cannot occur. In the North, a repeat of the 1881 Nicobar Islands or of the 1941 Andaman Islands earthquakes and tsunamis can be expected in the future - although it is difficult to say how soon. Such events seem to occur on the average of every 50 years.

2005-03-28 16:09 Bangkaru, Banyak Islands 8.6 Mw (HRV)
Fatalities 1,303
2007-09-12 11:10 125 km SW of Bengkulu 8.4 Mw (HRV)
Fatalities 25
2007-09-12 23:49:04 UTC 205 km NW of Bengkulu 7.9 Mw (USGS)
2007-09-13 03:35:26 UTC 165 km SSW of Padang 7.0 Mw (USGS)
2008-02-20 08:36:35 UTC 310 km SSE of Banda Aceh 7.4 Mw (USGS)
2008-02-25 08:36:35 UTC 160 km SSW of Padang 7.2 Mw (USGS)
2009-09-30 10:16:10 45 km WNW of Padang 7.6 Mw (USGS)
Fatalities 6,234
2010-04-06 22:15:02 UTC 215 km SW of Medan 7.8 Mw (USGS)
Injured 62
2010-05-09 05:59:42 UTC 215 km SSE of Banda Aceh 7.2 Mw (USGS)
2010-10-25 14:42:22 UTC 240 km W of Bengkulu 7.7 Mw (USGS)
Missing 435 + 100

 

[WussRedXLi]

Today Online 19 Dec 05
Is disaster moving northwards? Nicobar Islands quake could have serious implications for S'pore and M'sia: Thai expert
By Jose Raymond

NICOBAR ISLANDS : As the world takes time out to remember the 290,000 victims of the December 26 tsunami that hit the region last year, some experts are already issuing a serious warning: Look ahead at what could happen next.

Of particular worry are the remarks made by Thai meteorologist and seismologist Dr Smith Dharmasaroja.

In recent interviews, the Thai scientist has warned that the epicentre of the next earthquake would be further north than last year's temblors, which brings the Straits of Malacca and - more disturbingly - Singapore and Malaysia into range.

And Dr Dharmasaroja is not a man who should be ignored. In 1998, he was the man who predicted that Thailand's Phuket island and the surrounding Andaman region was at risk.

At that time he was called a "rumour-monger" and a "madman", out to ruin the country's tourism industry.

Having sadly been proved right last December, he is now a vice-minister in the Office of the Prime Minister of Thailand, and has been tasked with putting in place early warning systems along the Andaman coastline.

Said the 70-year-old in an interview with TODAY: "We can only say, by historical data, that every 50, 80 or 100 years a big earthquake and tsunami will occur. This possibility is based on current seismological data.

"The latest data shows that the epicentre is moving north towards the Andaman and Nicobar Islands, and if an earthquake takes place in this area, this would cause greater effects in the Straits of Malacca than what happened last year.

"If the epicentre continues to move north and a tsunami occurs, the wave will move towards the Straits of Malacca, which is narrow and shallow. "This can cause great damage if early preparations are not taken."

He added that he recently concluded studies on such a possibility with other scientists. "We have made the simulation tests, and now we need to look at the data to see the impact of a tsunami if an earthquake happens in the north, and, using this data, set up early warning systems."

Though he refuses to be drawn into predicting when such a tsunami will strike, Dr Dharmasaroja said that his studies are based on tsunami record data that stretches back for 200 years, which he has been analysing over the last 30 years.

"There have been 12 tsunamis in the last two centuries and the last big one before Dec 26 last year occurred in the Indian Ocean, created by the explosion of the Krakatoa volcano 122 years ago," he said.

"Sometimes the really big ones occur in 80 to 100-year cycles. In 1941, there was an earthquake near the Nicobar Islands which measured 8.7 on the Richter scale and in 1914 there was one that was 7.2.

"Both of these had their epicentres north of the Dec 26 earthquake, east of Sumatra. Based on these records, we are due for another big earthquake in roughly the same area - and it could send waves surging through the Straits of Malacca which could smash into Malaysia and Singapore."

Associate Professor Dr David Higgitt of the National University of Singapore's geography department said that while there was no evidence to suggest that Singapore could be hit by a tsunami, he did agree that recent studies and data have shown that there was stress building up in the Nicobar Islands area.

He added that geophysicists in the United States are also studying the reasons behind the substantial move northwards.

He also noted that there had been an earthquake at the Nicobar Islands in March, which triggered a minor tsunami.

"But for the Straits of Malacca to be hit by primary waves, it would have to be a huge earthquake," said Dr Higgitt. He added that Dr Dharmasaroja's studies are based primarily on historical data and the huge assumption that a major earthquake would strike the Nicobar Islands.

Added Dr Higgitt: "I have not seen the data of the simulation tests and it would not be fair for me to comment until I do."

But until then, Dr Dharmasaroja is urging the governments of Malaysia and Singapore to take proper precautions, including setting up early warning systems.

Said the scientist, who was featured on the front page of The New Straits Times of Malaysia yesterday: "I don't want the Singaporean and Malaysian governments to make the mistakes which the Thai government made. The early warning system is something which they should seriously invest in because it will save a lot of lives.

"In fact, I've suggested to the Indonesian government that it should not allow any human habitation on the northern coast of Sumatra as these areas are prone to be hit."

But what can these countries do if something as big as the Dec 26 tsunami does strike?

"A good warning system can help. A system that warns people at least one hour in advance is good, because it gives them time to head for higher ground. You should build structures that are strong enough to withstand the waves," he said.

"You also need to educate people on what to do. For instance, for fishermen and ship-owners, when there is a tsunami warning, they need to know to move their ships out to sea, not dock them. "This is because a tsunami gets bigger the closer it moves inland. You do not feel the tsunami when you are in deep water. Governments should consider putting up buffer zones along the coastline, perhaps by planting strong coconut trees, bamboo shoots, or mangrove plants."

Dr Dharmasaroja says that he is more than willing to help in convincing the sceptics. "They should just take the time to set up a committee to study this phenomenon and, if they are willing, I will produce my research to show why I believe that an earthquake will take place in the Nicobar Islands area," he said. - TODAY

Today Online 20 Dec 05
Tsunami ... tsunami not ... Not all geologists agree with tsunami prophet's warning for Singapore
Ansley Ng ansley@newstoday.com.sg

IN recent interviews, Thai tsunami prophet Dr Smith Dharmasaroja said the epicentre of the next earthquake in the region could move further north from last year's temblors, which puts Malaysia and Singapore at risk of being hit by killer waves.

Since predicting correctly the Dec 26 tsunami last year, Dr Dharmasaroja, who was then labelled a "madman" and "rumour-monger", has been taken seriously by many who do not wish to see a repeat of the disaster that killed 290,000.

Two days ago, Dr Dharmasaroja--now a vice-minister in the Office of the Prime Minister of Thailand--told Today that, based on his studies, an earthquake with its heart slightly north of last year's epicentre could "send waves surging through the Straits of Malacca, which could smash into Malaysia and Singapore".

But some local and overseas experts are sceptical. One of them, Professor Pan Tso-Chien, Dean of School of Civil and Environmental Engineering at the Nanyang Technological University, does not think that tidal waves could "smash" into Singapore.

Dr Dharmasaroja's prediction did not consider energy loss that the waves would suffer as a result of the area's terrain, said Prof Pan. To cause tsunamis, an earthquake larger than a measurement of 7 on the Richter scale would be needed, he said.

There is no way to accurately predict where quake epicentres would be. But judging by history, earthquakes of such magnitudes would most likely happen on the Western side of the Andaman Islands, said Prof Pan.

And the Andaman Islands would act as a buffer before waves make their way eastbound across the Andaman Sea, towards Thailand and the Straits of Malacca.

Prof Pan also believes that the narrow Straits would further slow down the tidal waves coming into the area. "I am not sure if the wave energy that would be transmitted to the mouth of the Straits of Malacca would be bigger than what we saw last year," said Prof Pan.

Another expert, University of Colorado geological sciences professor Roger Bilham, noted that a 1881 quake measuring 7.9 on the Richter scale, centred on the Nicobar Islands, "caused no tsunami to propagate eastwards".

"My reading of the historical data is that only in very rare M9 earthquakes (quakes measuring more than 9 on the scale) do tsunami propagate eastward from the Sumatra-Nicobar-Andaman system," said Dr Bilham.

When contacted last night, Dr Dharmasaroja said he agreed with Prof Pan that waves lose energy if they enter the Straits of Malacca, but said they would "gain height" instead. He also disputed the argument that the Straits, which he estimated was about 1,000m deep, is too shallow to sustain tsunamis.

Last year, the waves that hit Penang--where more than 30 were killed--travelled in depths of about 1,300m before unleashing its power, said Dr Dharmasaroja. "There could have more casualties in Penang if not for the tip of the Sumatra island, which blocked the waves. It's up to you to believe me or not," he said of his prediction.

Though the National Environment Agency (NEA) thinks it is unlikely that Singapore would be hit by a tsunami, it is not taking chances.

One of its units, the Meteorological Services Division, plans to enhance seismic stations in Singapore to improve the detection of quakes that could cause tsunamis. The NEA is also working with the Maritime and Port Authority of Singapore to enhance the local tidal gauge network.

The New Straits Times 18 Dec 05
SPECIAL FOCUS: TSUNAMI the next big one Sheridan Mahavera

IN 1998, Thai meteorologist Dr Smith Dharmasaroja predicted a tsunami would hit Thailand in 2004. But his warning was ignored.

Now a Vice-Minister in the Office of the Thai Prime Minister, Smith recently gave another dire warning ********* a tsunami is likely to strike Malaysia and Singapore. He talks to SHERIDAN MAHAVERA about his prediction.

Q: How did you arrive at your prediction that another tsunami could hit Malaysia and Singapore?

A: After studying the 200-year tsunami record, I found that there have been 12 tsunamis. The last big one before Dec 26 occurred in the Indian Ocean and it was a tsunami created by the explosion of the Krakatoa volcano 122 years ago. Sometimes the really big ones occur in 80 to 100 year cycles


Q: So, according to the cycle of occurrences you expect another quake?

A: Near the Nicobar islands there was an earthquake in 1941 that measured 8.7 on the Richter scale and in 1914 there was one that was 7.2. Both of these had their epicentres north of the Dec 26 earthquake (east of Sumatra). So according to these records, we are scheduled for another big earthquake in roughly the same area and it could send waves surging through the Straits of Malacca and smash into Malaysia and Singapore.

Q: Will the epicentre be in the Straits of Malacca?

A: The epicentre need not be in the straits. It could be north of it and this is enough to send killer waves to both countries. In fact, I*********ve made suggestions to the Indonesia Government that it should not allow any human habitation on the northern coast of Sumatra as these areas are prone to be hit. The epicentre for the last one was off the western coast of Sumatra. Malaysia was only hit by a secondary wave that ricocheted off the big primary wave that struck Thailand. If the epicentre moves north, then Malaysia will be hit by a primary wave.

Q: So we are overdue for another big one?

A: We are definitely overdue based on the 100-year cycle and because this one is also close to shore, it will cause a lot of damage. We have to learn the characteristics of nature in order to live peacefully with it. That is why Thailand is trying to set up a warning system. We have built 62 warning towers in all of the six provinces which were hard hit by last year*********s disaster and we will be deploying buoys and scanners in the Andaman Sea next year.

Q: How long do we have before a tsunami hits us again? Two, four, 10 years?

A: I cannot say. How close the prediction is correlates to the cycle.

Q: Recently, some people spread text messages in Malaysia stating that a tsunami would hit us on Dec 26 again this year or maybe next year.

A: I know about that and these are irresponsible people who are basing their assumptions on a recent interview I gave to a Singapore newspaper. Unfortunately, they read the article and gave their own interpretation. But I never mentioned any specific date because that is impossible. If I could predict the date so accurately then I would be a millionaire (laughs).

Q: So what can we do, given the fact that we will be hit?

A: A good warning system can help. A system that warns people at least one hour in advance is good because it gives you time to head to higher ground. If you build strong enough structures, then maybe they can withstand the waves. You also need to educate people on what to do. For instance, for fishermen and ship owners, when there is a warning they need to move their ships out to sea, not dock them. This is because a tsunami gets bigger the closer it moves inland. You do not feel the tsunami when you are in deep water. Governments should consider putting up buffer zones along the coastline such as by planting strong coconut trees, bamboo or mangroves..

Q: How can we protect buildings which lie along the coastlines?

A: You cannot care about property. It will be destroyed every time there is a tsunami. Anything on the beach must be built on strong pillars and have no walls so that waves can pass through. The lowest floor of the structure must also be higher than the height of the last recorded tsunami.

Q: How do you predict earthquakes and tsunamis?

A: I have been studying earthquakes for 25 years and have gathered information and historical records from the United States and Japan. There is no technology to predict earthquakes but you can forecast by looking at historical records.

Q: These quakes result from the movement of the tectonic plates?

A: In geology you can see the movement of plates that make up the earth*********s crust. In our region of the Indian Ocean there is the Eurasian plate, and the Indian plate beneath it. In the Dec 26 tsunami, the Indian plate was raised by about 40 metres and that created the tsunami. Such large vertical movements of the plates are caused by accumulated energy that emanates from the earth*********s mantle, below the crust. When that energy is released it creates a big movement of the plates. That energy is accumulated over time and released every 40 to 50 years or so.

Q: Only earthquakes which involve vertical movements in the earth*********s plates will cause a tsunami?

A: Correct. In March this year, there was another large quake whose epicentre was south of the Dec 26 tremor. But this one did not cause a tsunami because the plates moved parallel to each other, there was no vertical movement. But there is something else that might cause another tsunami in our neighbourhood. Recently, British and Russian scientists have discovered an underwater mountain range measuring about two kilometres in height in the Andaman stretching from Rangoon, in Myanmar, to the Nicobar Islands. It was created by the accumulation of sediment from rivers in Myanmar and Bangladesh. As it lies on the faultline, any moderate earthquake measuring 5 on the Richter scale or more can cause the mountains to topple and this can cause a tsunami. So you see, we don*********t have to wait for a major earthquake to see another tsunami.

Q: Did your government and people think you were crazy when you predicted the Dec 26 tsunami in 1998?

A: They criticised me heavily. They said I was going to destroy Phuket*********s tourism industry. But I was the director-general of the Meteorology Department at the time and it was my duty to warn people about these things. (laughs)

Q: How did you feel when you were proven right?

A: (laughs) I had to come back to work for the Government after retiring 11 years ago. I*********m now in charge of building the warning system. But I wish I was wrong (about the prediction). When I first went public with the prediction, I had written a warning letter and sent out copies to the Prime Minister*********s office, the ministry I was under and the authorities in six provinces. Now, relatives of those who died in the disaster want me to give them the original copy so that they can sue the Thai Government for negligence.

 

[WussRedXLi]

Earth Observatory of Singapore

Singapore is surrounded by water and can therefore be affected by a tsunami. However, the megathrust tsunamis like the one that hit the Indian Ocean in 2004 will not affect Singapore: the Indonesian archipelago acts as a barrier that protects the city from such events.

Nonetheless, tsunamis generated by submarine landslides or eruptions in the Sunda shelf can potentially affect Singapore. That is why scientists investigate plausible past tsunami deposits on the shores of the South China Sea and the Java Sea.

 

[WussRedXLi]

However, NEA thinks that we are safe.

http://news.asiaone.com/News/AsiaOne+News/Singapore/Story/A1Story20081216-108275.html

While being hit by a tsunami does not rate as one of the greatest fears of Singaporeans, the repercussions of being caught unawares will no doubt be devastating.

It was with this in mind that, after the destructive Indian Ocean tsunami struck in 2004, the National Environment Agency (NEA) with the National University of Singapore and the Nanyang Technological University embarked on a study to evaluate the probability and impact of a tsunami on Singapore.


The two-year study, which cost $1.3 million, confirmed that impact of a tsunami on Singapore is likely to be minimal as even an earthquake of seismic order 9.0 and above will take more than 10 hours to reach Singapore.

The finding is not unexpected as Singapore is sheltered by the surrounding land masses.

Moreover, the shallow waters in the Malacca Straits and South China Sea - unlike the deep waters in the Indian Ocean and the Pacific Ocean - will significantly slow down any tsunami propagation and dissipate its energy.

However, the study considered two possible occurrences that might generate a tsunami that will affect Singapore - these include an undersea landslide near Singapore, and great earthquakes of the order 9.0 and above.

The study found that the likelihood of major undersea landslides near Singapore is very low.

In addition, numerical simulations of a tsunami triggered by undersea landslides show that the impact on Singapore is expected to be minimal.

Seismic zones

The study also identified two seismic zones, namely the Sunda Arc at the Andaman Sea (north and west of Sumatra) and the Manila Trench at the South China Sea (northern Philippines), that have the potential of producing large earthquakes.

Simulations showed that tsunami triggered by earthquakes along these two seismic zones are expected to take more than ten hours to arrive at the Singapore coast.

By the time the tsunami waves arrive in Singapore, the wave energy will have largely been dissipated and hence, the likely impact on Singapore will be minimal.

In addition, great earthquakes of magnitude 9.0 and above have been infrequent events. The Indian Ocean tsunami is the only earthquake of such magnitude in recorded history.

There has also been no known record of a tsunami affecting Singapore. During the 2004 Indian Ocean tsunami, measurements at the coastal waters west of Singapore did not record any significant rise in the sea level.

Possible impact

However, some of Singapore's beach areas are still potentially vulnerable to tsunami inundation in the scenario of a magnitude 9.0 earthquake at the Manila Trench.

These include beaches at West Coast Park, Labrador Park, Sentosa and the Southern Islands, East Coast Park and Pasir Ris Park.

The projected rise in sea level in the unprotected beach areas is estimated to be between 0.4m and 0.7m, and the inundation level is estimated to be less than 50m from the shore.

Tsunami response plan

While the potential of a tsunami impact on Singapore is low, those at unprotected beach areas can still be exposed to some risk in the event of a tsunami.

NEA has developed a tsunami response plan with the cooperation of the relevant agencies, namely the Singapore Police Force, Maritime Port Authority (MPA), Jurong Town Corporation (JTC), Sentosa Development Corporation (SDC).

Due to our sheltered geographical location, there is an expected long lead time before the first wave arrives in Singapore.

The Tsunami Response Plan is able to leverage on this lead time to provide early alerts to the public, and activate evacuation at the vulnerable public beach areas.

In terms of specific roles, NEA will continue to monitor the regional seismic activities for possible occurrence of tsunamis.

In the event that a tsunami is assessed to affect Singapore, NEA will issue early alerts and warnings to the respective agencies and provide the public with information on the tsunami.

The police and SDC will ensure that the public at the vulnerable public beach areas are alerted and facilitate the evacuation from these areas.

The agency also advises the public to stay away from these unprotected beach areas and heed the advisory to evacuate should a tsunami warning be issued.

 

[laironpark]

Ｉhave DIYed the 3M electrostatic filters to fit into my Samsung KC-840 before. They are all the same stuff. Basically in SG air quality/room context, after 6 weeks ineffective liao. 　In fact, when I switched it on after that period of time, immediately I sneeze and have that soul/numb feeling at the top of my nose, and know my allergic rhinitis kena triggered liao. Probably the initial airflow burst dislodged some good amt of dust particles with mites faeces (allergens) or something.

Advise you to go HEPA.

Sharp filters are readily available on taobao. Key is you need to be able to purchase from TB, which is not very difficult. Sharp is quite widely available in China, weird as it seems (CN hates JP).

Samsung can also get easily, customise the filter with exact dimensions. A more difficult way coz need to IM (阿里汪汪）the seller.
I use this seller for customisation. Don't mind the link, it's not the link to any product, just a reference to the shop. You can choose other sellers as well.

I have tested the HEPAs before with my laser particle counter, quality is ok. Just take it that the performance drop in the room in real life is not noticeable in a Indon haze situation.

Thanks for your comment and advise. Will scout around for either Sharp and Samsung to get the best deal. Cheers.

 

[mikeeeey]

I tried to purchase sharp filters from TB. When placing the order i already keyed in my Singapore address, and it automatically generated a shipping charges which was reasonable. After that the seller msg me say need to top up rmb$200 to ship to sg. Wth?

Will try WRX recommended seller. Does he/she ship internationally or need a proxy?

 

[WussRedXLi]

I tried to purchase sharp filters from TB. When placing the order i already keyed in my Singapore address, and it automatically generated a shipping charges which was reasonable. After that the seller msg me say need to top up rmb$200 to ship to sg. Wth?

Will try WRX recommended seller. Does he/she ship internationally or need a proxy?

You will need to use one of the official TB appointed forwarders to Singapore. I recommend 4PX.
43rmb 1st kg, subsequent kg 24rmb.
Try to consolidate more stuff before sending out. If package is below 6kg or so and not v bulky, can even chose POPstation for convenience.

 

[laironpark]

Advise you to go HEPA.

Sharp filters are readily available on taobao. Key is you need to be able to purchase from TB, which is not very difficult. Sharp is quite widely available in China, weird as it seems (CN hates JP).

Samsung can also get easily, customise the filter with exact dimensions. A more difficult way coz need to IM (阿里汪汪）the seller.
I use this seller for customisation. Don't mind the link, it's not the link to any product, just a reference to the shop. You can choose other sellers as well.

I have tested the HEPAs before with my laser particle counter, quality is ok. Just take it that the performance drop in the room in real life is not noticeable in a Indon haze situation.

Hi bro, just chanced upon this air purifier LG PS-R459WN on a website selling for $269. Like to know your view on this machine. Thanks.

 

[chuanz]

Hi bro, just chanced upon this air purifier LG PS-R459WN on a website selling for $269. Like to know your view on this machine. Thanks.

He got one.

And just yesterday i purchashed the LG PSR-R459 (the 240V model of LG LA-Q379SB on qoo10) at SGD229 HN clearance sale.

Basically is recommended (huge HEPA) if the price is right.

 

[laironpark]

He got one.

Basically is recommended (huge HEPA) if the price is right.

Ok, shall wait for his take on rhis. Thanks, $229 is really gd price.

 

[WussRedXLi]

Hi bro, just chanced upon this air purifier LG PS-R459WN on a website selling for $269. Like to know your view on this machine. Thanks.

Yes...its an ok machine with the biggest HEPA filter size ard so that it'd come in useful if you customise the china HEPAs from taobao. In fact i measured a 5% slight increase in airflow speed when i changed out the original LG HEPA to the customised taobao ones. (Original depth is 37mm, customised taobao is 45mm). It can take a max of 45mm if you still want to use the netting prefilter.

Mine is display set from HN lah....everything good as new and used denatured alcohol (careful..can ruin plastic surfaces, test first) to clean.
269 can buy. Qoo10 cheapest is 278.

I rem last time quite long time ago, Best denki got one maroon Sharp KC-860 which is a v powerful unit that was going for 299 only. Display set but condition average only. All these are workhorses and keep going for at least 10yrs..and are energy efficient. Matters a lot if used daily for 10yrs.