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PM 2.5 Air Purifier Recommendation


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As I think everyone would agree, the air quality in Thailand is getting worse by the day.  I try to stay inside as much as possible during these periods, but that only does so much.

Any recommendations for a PM 2.5 air purifier?

Thanks!   🙂

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I bought the Xiaomi Air purifier pro. Under 6,000 baht. It works well, and can be paired with a smartphone app, which allows you to adjust the fan speed setting. Filter lasts 4-6 months, and the repla

I am also a Xiaomi user, great product for the money.

One of the things Xiaomi takes advantage of, apparently, was a change in the definition of what constitutes a true HEPA filter by European regulators some time back. They basically made their standard

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I know you are asking for an electronic equipment for enclosed rooms, but because I live in a house without glass windows (just wood shutters, mosquito nets) I have just bought hepa filter sheets, which can be placed behind floor/wall fans, on mosquito nets.

Those sheets can be used in air conditioners, also as replacements in air purifies.

They are cheap, some 80b/m2. Suppose to be changed, at least, monthly, when they get dirty.

Probably they are not hepa, as claimed.

cheap hepa filters

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I have been using Hatari AP-12 for many years (and an earlier model before) and they work well - run 24 hours a day and change filter every six months (clean about every month).  PPM inside stays under 10 even on worst days.  And very important you can obtain replacement filters as it is a local made unit.

https://www.hatari.co.th/airpurifier/f2030270set

Edited by lopburi3
Correct PPM rather than AQI
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On 1/17/2021 at 11:32 AM, spidermike007 said:

I bought the Xiaomi Air purifier pro. Under 6,000 baht. It works well, and can be paired with a smartphone app, which allows you to adjust the fan speed setting. Filter lasts 4-6 months, and the replacement filter is 700 baht or so, which is cheap. And both the air filter and the replacement filter can be found on Lazada. Buy only the global version, as the other is all Chinese characters, and no option to change it, from what I hear. 

 

https://www.lazada.co.th/products/0-xiaomi-mi-air-purifier-pro-global-version-1-i277251229-s443232345.html?spm=a2o4m.searchlist.list.5.9f46746bDUOX3K&search=1

 

I also have a Samsung air filter. It works well, but the replacement filter is 3500 baht, and nearly impossible to get. I found a genetic filter, and ordered it from Communist China (LOL), and it cost 1500 baht, and took a month to arrive. 

 

 

 

 

xiaomi-mi-air-purifier-3h-.jpg

I also am very satisfied with the Xiaomi air purifiers.  If buying, pay attention to the effectiveness per sq./m.  The units pictured are good for about 40-50 sq/m rooms.  I have a large 65 sq/m studio and use two units, one on each end of the apartment.

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On 1/19/2021 at 11:45 AM, dddave said:

I also am very satisfied with the Xiaomi air purifiers.  If buying, pay attention to the effectiveness per sq./m.  The units pictured are good for about 40-50 sq/m rooms.  I have a large 65 sq/m studio and use two units, one on each end of the apartment.

 

I have Xiaomi 3H and it struggles with a 40sqm rooms. Today when outside PM2.5 (not AQI) is 120 its capable to reduce to 30-40 which is still not really healty (max average in one day should be below 20).

 

cheers!

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3 minutes ago, dadadede said:

 

I have Xiaomi 3H and it struggles with a 40sqm rooms. Today when outside PM2.5 (not AQI) is 120 its capable to reduce to 30-40 which is still not really healty (max average in one day should be below 20).

 

cheers!

Change mode to "heart" and it'll bring it down. Either in app or on the touchscreen.

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4 hours ago, dadadede said:

 

I have Xiaomi 3H and it struggles with a 40sqm rooms. Today when outside PM2.5 (not AQI) is 120 its capable to reduce to 30-40 which is still not really healty (max average in one day should be below 20).

 

cheers!

When pollution is clearly visible, I run both my Xiaomi Air purifiers (1: 2H, 1: 3H) at full fan speed and I usually get readings between high teens & low 20's. 

All 4 walls of my apartment are exposed to outside air and outside doors are not particularly tight so there is a lot of ongoing air leakage, especially on windy days. 

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On 1/17/2021 at 11:32 AM, spidermike007 said:

Buy only the global version, as the other is all Chinese characters

No problem using a chinese unit, there is not much to understand, most infos use the standard symbols.

 

I'm using the Xiaomi 2S (once bought for 2700 THB or so, replace the filter before the burning season) on about 60 square meters, which is over what the unit is advertised for, but here at my place it works ok. If your windows let more air through it might not work as well.

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15 minutes ago, guzzi850m2 said:

I am in doubt on what to buy, my living room is quite big, almost 100M2 and then there are the bedroom upstairs, 2 in use.

a small unit for each room and multiple for the living area. 

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15 minutes ago, guzzi850m2 said:

I am in doubt on what to buy, my living room is quite big, almost 100M2 and then there are the bedroom upstairs, 2 in use.

So you may need 4, one each end of the big room and one in each bedroom. They are so quiet you would hardly notice them. 

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