Green / Eco-Friendly

Recommend Air Quality Meter

  • Last Updated:
  • Dec 22nd, 2017 1:40 pm
Deal Fanatic
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Feb 11, 2007
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Oakville
Thanks for the links. I put a bid on one.
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Jul 26, 2008
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Montreal
Found this online store selling air filtration devices with lots of data on the effectiveness of different filter types while I was looking for reviews on the Laser Egg 2
https://smartairfilters.com/en/blog/las ... e-beijing/

Company started by a foreign PhD student in China, Thomas Talhelm and his quest for clean air.
https://www.quora.com/Can-the-Quora-com ... as-Talhelm

The interesting FAQ here, reminded me I purchased a cheap box filter and some 20 x 20 furnace filters this summer to make my own DIY filter. After reading the info on https://smartairfilters.com/data/en/ I turned it on. Very interesting that what ever type of device you have, air quality will degrade quickly after these devices are turned off. So they really have to be working when your occupy the space in which you want clean air. Now looking for some better quality filters
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So I just received the TaoBao unit yesterday. So far so good.

Here are the readings at work. I expected them to be much worse. At home the PM2.5 readings were 1-2.
Image
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Feb 11, 2007
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naimc wrote:
Nov 27th, 2017 10:49 pm
Found this online store selling air filtration devices with lots of data on the effectiveness of different filter types while I was looking for reviews on the Laser Egg 2
https://smartairfilters.com/en/blog/las ... e-beijing/

Company started by a foreign PhD student in China, Thomas Talhelm and his quest for clean air.
https://www.quora.com/Can-the-Quora-com ... as-Talhelm

The interesting FAQ here, reminded me I purchased a cheap box filter and some 20 x 20 furnace filters this summer to make my own DIY filter. After reading the info on https://smartairfilters.com/data/en/ I turned it on. Very interesting that what ever type of device you have, air quality will degrade quickly after these devices are turned off. So they really have to be working when your occupy the space in which you want clean air. Now looking for some better quality filters
Interesting data. It makes sense that humidity would raise the rating as that's more stuff in the air. At home, when we were boiling water in the kitchen the sensor in the nearby room raised from 1ug/m3 to 5ug/m3.
[OP]
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Jan 6, 2011
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GTA
Checked Air Quality (iOS) today, 107 (PM2.5) for Toronto. But the O3, NO2, SO2 and CO were far below where known polluted cities had 100. Note that we had fog advisories and humidity ~80%.

So I suspected H2O vapor is also lumped into PM2.5 and none of the meters we can buy have separate readings on the toxic gases.

Toronto is typically 20-50, but humidity along could bring reading to 100, unhealthy for sensitive groups.
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Feb 15, 2005
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naimc wrote:
Nov 27th, 2017 10:49 pm
Found this online store selling air filtration devices with lots of data on the effectiveness of different filter types while I was looking for reviews on the Laser Egg 2
https://smartairfilters.com/en/blog/las ... e-beijing/

Company started by a foreign PhD student in China, Thomas Talhelm and his quest for clean air.
https://www.quora.com/Can-the-Quora-com ... as-Talhelm

The interesting FAQ here, reminded me I purchased a cheap box filter and some 20 x 20 furnace filters this summer to make my own DIY filter. After reading the info on https://smartairfilters.com/data/en/ I turned it on. Very interesting that what ever type of device you have, air quality will degrade quickly after these devices are turned off. So they really have to be working when your occupy the space in which you want clean air. Now looking for some better quality filters
You need to keep in mind that air quality degradation depends on the outside air intake and outside air quality. The reason it degrades so quickly in Beijing is that their PM2.5 levels are typically over 150. Here in Canada, air degradation takes significantly longer. The average pm2.5 in YEG is 25 but my inside air is typically 0 or 1.
engineered wrote:
Nov 27th, 2017 11:13 pm
So I just received the TaoBao unit yesterday. So far so good.

Here are the readings at work. I expected them to be much worse. At home the PM2.5 readings were 1-2.
Image
Nice. It looks like the unit you have doesn't measure CO2. Does it have the excel CSV download option?
LongLiveRFD wrote:
Dec 4th, 2017 10:31 pm
Checked Air Quality (iOS) today, 107 (PM2.5) for Toronto. But the O3, NO2, SO2 and CO were far below where known polluted cities had 100. Note that we had fog advisories and humidity ~80%.

So I suspected H2O vapor is also lumped into PM2.5 and none of the meters we can buy have separate readings on the toxic gases.

Toronto is typically 20-50, but humidity along could bring reading to 100, unhealthy for sensitive groups.
The uHoo Air can measure 03, NO2 and CO but not SO2. Unfortunately, with a landed price of $400, it's not for everyone. If you really want one, I can generate a code for $30 off a unit for you.
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rf134a wrote:
Dec 22nd, 2017 11:42 am
You need to keep in mind that air quality degradation depends on the outside air intake and outside air quality. The reason it degrades so quickly in Beijing is that their PM2.5 levels are typically over 150. Here in Canada, air degradation takes significantly longer. The average pm2.5 in YEG is 25 but my inside air is typically 0 or 1.


Nice. It looks like the unit you have doesn't measure CO2. Does it have the excel CSV download option?


The uHoo Air can measure 03, NO2 and CO but not SO2. Unfortunately, with a landed price of $400, it's not for everyone. If you really want one, I can generate a code for $30 off a unit for you.
Yea, no CO2 that I can see. There's a button marked fun that doesn't seem to do anything. I haven't tried plugging it into my PC to see if there's a CSV. I'll try it. Hopefully I don't get chinese malware... :)

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