Air purifier?

[chuanz]

Sorry was searching the thread, have no answers to AX40, how to turn on/off the virus doctor? TIA

Default OFF, third touch button. Short touch turns ON/OFF VirusDoctor, long touch resets filter change warning.

 

[Asakura]

Can the virus doctor in ax40h5000gmd be switched off? The AP seems value for money but i dont trust those ioniser.. if it produces ozone then its no good. Like sitting next to a photocopier..bad for lungs

Default is off and yes can be switched on/off.

english manual doesn't have Virus docter, but I believe its just pressing the 3rd button from the left once to turn on/off. If you hold it for 3 seconds that activates the Filter reset button.

Anyone read the korean manual? On the front it says that if you use it outside of S Korea there is no guarantee of quality assurance

 

[kimsim]

Stacking 2 thin HEPA is like series resistance, you ADD to the airflow resistance.

Having one think HEPA is like parallel resistance, you REDUCE the airflow resistance.

Besides, if you stack HEPA, the first one does all the hard work, second one jiak liao bee (remember that their filtration efficiency is independent of media thickness)

Noted, will do more research again

 

[kyuushin]

$20
http://special.qoo10.sg/gmkt.inc/Sp...&flowpath_page_value=1386&__da_seqno=73701512

$8
http://www.qoo10.sg/sg50

Buy qoo gift card. $95 for $100

 

[mccmmm]

Wah so scarethely dont know doctor can be built into box of fan any filters lol

 

[otacon]

Increase total HEPA media area, reduce overall air resistance, increase airflow.

Reducing air resistance not same as airflow?

 

[cReDdY]

Default OFF, third touch button. Short touch turns ON/OFF VirusDoctor, long touch resets filter change warning.

thanks...

 

[ralliart12]

$20
http://special.qoo10.sg/gmkt.inc/Sp...&flowpath_page_value=1386&__da_seqno=73701512...

All coupons retrieved. Asked me to try tomorrow.

 

[alannn]

Ordered ax40 on the 19sep from Daiso,noticed have tracking no two days back( at processing unit) wonder how soon will it reach

 

[WussRedXLi]

Wah, 4 APs. U seems well prepared

He got much more than that...

WRX been using air purifiers for years.

Yeah....I suspect 1994 and 1997 haze season weakend my body by a fair bit. Haze does injure your system and it takes years of good year to repair it back (eliminate inflammation) and make sure the body does not remember + develop a sensitivity to it.

Did a lot of research and reading, so as to reduce my allergic rhinitis (caused by dust mite droppings). And research a lot into air pollution, esp since 2013 haze season.

Total of 10 APs and 5 aircon FCUs equipped with 3M Filtrete (Amazon and Taobao sources, cheap cheap) across 3 HDBs.

 

[WussRedXLi]

Can I ask for hepa thickness, if custom made slighly thicken than original, that meant can be filtering more dust or last longer than the slim size?

Thanks

Basically it would increase the airflow figure, but it's not a linear function.

It can hold more "dust" for sure, every HEPA filter has a PM holding spec, xx grams of PM. But issue is, it would smell way before that. Just a question of smell a wee wee bit, smell a little bit, smell somewhat, moderate smell, !#$!#@! smelly like shiat.

Water filters too. You changed out the water filter in JAn 2015, used it for 20 days. Ok.... then you went overseas. Came back Feb, use for 5 days, then oversea again. March, same thing. April whole month in SG. May use for 12 days. June use for 3 days. By right you can use for 2 years liao, right. But no, esp for water filters (ie water), you are supposed to change it out every 4 months.

HEPA not the same as micro/ultra/nanofiltration in water, but it's around there. There's a limit.

 

[LFC25]

You need to use at least a 1.5 x the wattage of the equipment. That's the minimum.

Thank you!

 

[WussRedXLi]

Many people, including doctors, say that air conditioning is effective.

I respectfully disagree.

Did a test. 9000 btu/hr in a very small room of 2.7m x 3.6m (the new BTO bedrooms, small until kaopeh). SO the aircon FCU : room area ratio is extremely high. ie a lot of aircon fins/surface area for the room volume.

This is the bestest case scenario for aircon to make a difference.
Took nearly 1 hour to drop from 96 ug/m3 -> 72 ug/m3.....and likely not to go below 50 ug/m3 due to external loading. In a severe haze episode, it is likely not to reduce by much due to heavy external loading. And this is among the best case scenario, big aircon, small room. Ratio is good and advantage skewed towards the aircon.


And note : This is probably because the aircon compressor is running and there is condensation water formed on the heat exchanger fins, which aids in trapping the fine smoke particles with the air running over them. No water, no drop in PM2.5 concentration. You see the temperature on the thermo, you know already, it can drop from 30 deg down to 22 deg in 1 hour, it's a small room and big FCU. It cannot gun continuously for 12 hours, 24hrs, or in our recent case 48 hours high concentration (not much use also).....either it gets really cold (it can hit 17 deg C in my small room if external is not hot)or you risk getting the compressor uplorry.


Afte 11.46, ran air purifier for 8 minutes , 72 ug/m3 -> 1 ug/m3

For comparison, even 3M Filtrete eats it for breakfast. 20 minutes run only (though at lower concentrations)

.

 

[kimsim]

Many people, including doctors, say that air conditioning is effective.

I respectfully disagree.

Did a test. 9000 btu/hr in a very small room of 2.7m x 3.6m (the new BTO bedrooms, small until kaopeh). SO the aircon FCU : room area ratio is extremely high. ie a lot of aircon fins/surface area for the room volume.

This is the bestest case scenario for aircon to make a difference.
Took nearly 1 hour to drop from 96 ug/m3 -> 72 ug/m3.....and likely not to go below 50 ug/m3 due to external loading. In a severe haze episode, it is likely not to reduce by much due to heavy external loading. And this is among the best case scenario, big aircon, small room. Ratio is good and advantage skewed towards the aircon.


Afte 11.46, ran air purifier for 8 minutes , 72 ug/m3 -> 1 ug/m3

For comparison, even 3M Filtrete eats it for breakfast. 20 minutes run only (though at lower concentrations)

.

Wow said no to hepa apply on AC top, I guess totally would be reduce airflow.

Unless you might to try with Daiso filter still works fine, just noted that dun try to apply for panasonic AC, cause the pre-filter too fine already, after apply it and dun complain about too hot.

 

[WussRedXLi]

Later I think more folks will cheong the remaining last few sets of Sharp D40 and D60.

 

[WussRedXLi]

Wow said no to hepa apply on AC top, I guess totally would be reduce airflow.

Unless you might to try with Daiso filter still works fine, just noted that dun try to apply for panasonic AC, cause the pre-filter too fine already, after apply it and dun complain about too hot.

I tried another Taobao no-brand electrostatic filter. Some PF75 grade electrostatic filter.

It is significantly worse than the 3M Filtrete. It is cheap, however. 1 piece cover whole aircon is just RMB 6.

I doubt the Daiso would touch much of the PM0.1 to PM1 range, where the fine haze particles are.

The "physical hole" of the filter is not doing the filtration. It's the electrostatic attraction of the fibres.

But as a coarse particle pre-filter, anything also can.

 

[kimsim]

I tried another Taobao no-brand electrostatic filter. Some PF75 grade electrostatic filter.

It is significantly worse than the 3M Filtrete. It is cheap, however. 1 piece cover whole aircon is just RMB 6.

I doubt the Daiso would touch much of the PM0.1 to PM1 range, where the fine haze particles are.

The "physical hole" of the filter is not doing the filtration. It's the electrostatic attraction of the fibres.

But as a coarse particle pre-filter, anything also can.

Ya you are right, Daiso filter only prevent dust LOL

That's why I needs AP

 

[NWT1978]

Boxes of Air + masks at Watsons at Bedok Mall. Size S and M only lol... Size L still missing...

Guardian no stick for all sizes.

 

[kimsim]

Daikin AP dunno is good or not.

http://www.gumtree.sg/a-air-conditi...tylic-air-purifiers/1001430569830910681064709

 

[NWT1978]

Daikin AP dunno is good or not.

http://www.gumtree.sg/a-air-conditi...tylic-air-purifiers/1001430569830910681064709

I know they have excellent AC system... didnt know they have AP too...

Need to able to get replacement filter then worth it...