Air purifier?

[drifting]

Could the kim zhua burning be a contributing factor too? :?

 

[WussRedXLi]

Could the kim zhua burning be a contributing factor too? :?

Nope. If you live 2nd to 8th sty and downstairs is a big burning bin...then yeah. But not this extent or duration

 

[WussRedXLi]

Pls participate or read this 2015 Haze thread, for the latest info.

http://forums.hardwarezone.com.sg/e...-nino-haze-thread-5115113-7.html#post95963503

 

[WussRedXLi]

According to wunderground and NEA, winds will be SSW and SW until Saturday afternoon.

 

[WussRedXLi]

Again...Sibebsian...dunno when kenna health issue cos of this.

If you have young children, do protect them. They'd do much better growing up in unpolluted air, as compared to, say, the "benefits" ingesting expensive tins of super branded milk powders vs regular brands. Serious.

http://www.scmp.com/magazines/post-...-daze-air-pollution-and-our-children?page=all

The impact is worse in children than in adults.

"One of the basic principles we know when we are handling health problems in children is that they have small organs which are growing day by day. So, all those cardiovascular, respiratory and lung functions need to be developed into maturity in health to prepare them for the demands of the future. If, however, they are exposed to things which are harmful, the effect is much more significant than if these systems are already fully developed. The implications are much higher and have a lifelong consequence. We have growing evidence that long-term respiratory and cardiovascular problems are strongly related to early exposure to environmental pollutants. The lungs and heart are immature in particular before primary school."

Dr Lee So-lun is honorary clinical associate professor at HKU's Department of Paediatrics and Adolescent Medicine. She explains why children are so much more vulnerable to these pollutants.

"Firstly, it's biological, meaning that the build-up of their body is different. All the organs are still growing and maturing during childhood. Any insult to growing organs causes a long-term impact, unlike in adults, who have mature systems. Plus, their body system cannot remove toxins as well as adults. Then we have to look at the lungs because that is where the air pollutants are going. Lungs are maturing in childhood and we know that toxins on growing lungs are harmful. Our immune system is also immature in childhood. So, if you have a toxin that interacts with a genetic predisposition, it can cause things like allergies and asthma.

"There are also physiological differences," Lee continues. "The lung wall in a baby is proportionally much larger than an adult's. This means far more pollution circulates through the system. Babies and small children also have tiny airways, so anything that aggravates them will have a far greater impact. Also, children are much more prone to mouth breathing, which stops their noses filtering dirty air. Children are usually much more active than adults, so they tend to run around breathing in much more polluted air."

Scientific studies show that mothers living in polluted areas are at greater risk of having babies with low birth weights and congenital malformation. Animal studies have linked attention deficit hyperactivity disorder (ADHD) and hyperactivity to early exposure to air pollution.


http://www.environment.ucla.edu/reportcard/article1700.html

 

[WussRedXLi]

For young children below teens, particularly infants/toddlers, i would try to keep it below 25 ug/m3 24-hr period and not more than 55 ug/m3 1-hr period.

 

[orangeman]

For young children below teens, particularly infants/toddlers, i would try to keep it below 25 ug/m3 24-hr period and not more than 55 ug/m3 1-hr period.

Hi bro ,
You have the LG AP English manual? Or can help to state the 4 different buttons on it?

 

[WussRedXLi]

Hi bro ,
You have the LG AP English manual? Or can help to state the 4 different buttons on it?

There's a timer button.
Then there's a mode button. I don't touch it, defaults to manual
There's a speed button.
Then there's a light intensity button.

Lastly, my 22 months old son knows how to operate the On/Off button and speed button. He only chooses these 2 as they make the difference (on off, fan speed). I did not teach him nothing.

So I don't think so anyone would have difficultly with it.

 

[winorlose]

Hi wussredxli bro, just now i went to best denki and sales lady recommended honeywell 18250/18200 and they are priced 599/499 respectively. R they any good? Any recommended ones within this price range?

 

[WussRedXLi]

Hi wussredxli bro, just now i went to best denki and sales lady recommended honeywell 18250/18200 and they are priced 599/499 respectively. R they any good? Any recommended ones within this price range?

Honeywell is trusted. Unfortunately I can't give a recommendation to say the 18250. It's 135 CFM (229 m3/hr) but @ 95W consumption.

Take the Samsung AX40. It's 323 m3/hr @ 34W spec. In fact, it was measured in a china test agency to be slightly more than 323 m3/hr and draws 27W. The original Samsung filter is also measured to be able to take care of PM0.1 (approx. 99% efficient).

95-27W = 68W difference. Taking 12hrs a day, that's an additional S$78 per year. Or $390 in 5 years.

I cannot find the official sound pressure level dB(A) spec, but I am 100% certain that the Samsung would be significantly quieter. Coz I have heard the Honeywell and Blueairs quite a few times at BEST. And the other Honeywell units like 50150 and 50250 are pretty noisy, the latter coming in at 58dB(A) at high speed.

Note, you'd need to maintain a certain airflow in your room. Coz you'd need to maintain a min of 5 ACH/Air changes per hour. Like for eg, the haze now. My meter is peaking at 108 ug/m3. If I put my Samsung in low speed, just now the PM2.5 rose to approx. 12 ug/m3. High speed still can maintain at 1 ug/m3.

Of course, there are people who do not trust China test agencies etc. That's alright, and it's their money, their choice.

Don't worry about the Activated charcoal, zeolite, potassium permanganate filters. Most homes do not have a VOC issue. I have a TVOC meter as well. It's not a big issue unless yours is a new house.


I think there is a Sharp A50 on offer at BEST? Vivo $438. Check 2-3 pages ago, I took a pic mah.

Sharp HEPA filters can be easily purchased from BEST. If running filter cost is a concern, you can DIY custom sized HEPA filters from Taobao. I am using these customised Taobao china based HEPAs now, and they 100% work nearly just as good during this hazy weather (they are measured to be about 97-98% @ 0.3 microns efficient with a slight hit in airflow speed so you'd need to increase the thickness of the filter by about 30% which isn't an issue.....I personally measured both efficiency and airflow speed). Doubly checked with 2 x laser particle counters and an anemometer at the AP output and also in real life room air quality measurement. Absolutely no issue at all for HDB rooms.

 

[WussRedXLi]

Spike since 2200hr just now.

 

[plasticpistola]

ya the Honeywell 50250 is really loud when set on high.

Light sleeper cfm cannot tahan~

 

[chuanz]

ya the Honeywell 50250 is really loud when set on high.

Light sleeper cfm cannot tahan~

Is confirm no need to sleep. LOL.

 

[winorlose]

And the honeywell looks pretty badass like some machine from the 60s

 

[WussRedXLi]

Actually the Samsung AX40 could still be a wee bit noisy for the ultra light-sleepers. 45dBA.

If really want to be hardcore, gotta choose the Sharp A80 ($475 cheapest) and operate it in medium speed. 41dBA @ 300 m3/hr. Can't beat that.

BTW bro winorlose, can google Goh Ah Bee, or Lioncity at Geylang. They offer good prices for the Sharp A80.

BEST can only buy when got offer. And now literally all the prices are normal retail, due to haze period.

You can also choose the Sharp A80. Excellent unit.


http://www.lioncityco.com/product_info.php?products_id=2253

 

[WussRedXLi]

And the honeywell looks pretty badass like some machine from the 60s

This one then badass.

 

[plasticpistola]

This one then badass.

Looks like those hardcore paper shredder lol

 

[WussRedXLi]

All are too loud.

 

[tissuepaper]

planning to get a air purifier.
need to consider what ?
dont understand the terms xxx mg3/hr
and noise factor as well?
also my window facing a main street (2 lane road), about 10 stories high about ground.
the dust particles are also and i got sensitive/dry eyes

 

[tissuepaper]

still reading and getting used to the jargon