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I bought a CO2 monitor for our home and I’m getting results from around 600ppm to 1000ppm

Posted on 7/23/24 at 9:30 am
Posted by Robin Masters
Birmingham
Member since Jul 2010
35021 posts
Posted on 7/23/24 at 9:30 am
But just for kicks I put it on top of our air purifiers where the clean air comes out and it doubles to around 1800ppm.

I don’t think our air purifiers clean the CO2 out so I wasn’t necessarily expecting less but why should it double? Quick google steady didn’t reveal anything so I thought I’d appeal to the TD junta.

Posted by notsince98
KC, MO
Member since Oct 2012
21374 posts
Posted on 7/23/24 at 9:36 am to
does the purifier essentially burn the particulates away? That would be my assumption.

600-1000ppm is decent, though. My house is apparently very tight and will hit 1500+ during the summer.
Posted by Robin Masters
Birmingham
Member since Jul 2010
35021 posts
Posted on 7/23/24 at 9:48 am to
quote:

does the purifier essentially burn the particulates away? That would be my assumption.


Not sure but I think they are just filters.

quote:

600-1000ppm is decent, though. My house is apparently very tight and will hit 1500+ during the summer.


I was pleasantly surprised.
Posted by notsince98
KC, MO
Member since Oct 2012
21374 posts
Posted on 7/23/24 at 12:21 pm to
quote:

Not sure but I think they are just filters.


What kind of purifier do you have? Some dont use filters at all and use some type of ionizing surface to "pull" contaminants out of the air and then neutralize their charge. After that those contaminates either fall out of the air or they float away being harmless after deionization.

Beeswax candles can purify air in this way, too.
Posted by notsince98
KC, MO
Member since Oct 2012
21374 posts
Posted on 7/23/24 at 12:25 pm to
also, I'm not sure how active carbon works in pleated filters. There may be some type of interaction with carbon in filters where there is an exchange and the carbon ends up producing CO2 molecules as a byproduct. I'd look into that too if you start researching it.
Posted by junkfunky
Member since Jan 2011
35785 posts
Posted on 7/23/24 at 2:12 pm to
Seems odd but you could just turn lemons into lemonade and grow weed by the purifiers.
Posted by CatfishJohn
Member since Jun 2020
19042 posts
Posted on 7/23/24 at 4:14 pm to
quote:

Seems odd but you could just turn lemons into lemonade and grow weed by the purifiers.

Posted by calcotron
Member since Nov 2007
10106 posts
Posted on 7/23/24 at 4:42 pm to
If the air purifiers are the kind that do ozone, then that ozone is oxidizing things and thus the slightly higher CO2. Not near a problem though.
Posted by Spankum
Miss-sippi
Member since Jan 2007
60590 posts
Posted on 7/23/24 at 9:42 pm to
I think you mean CO and not CO2….CO2 is what you exhale when you breathe
Posted by MikeD
Baton Rouge
Member since Jan 2004
8167 posts
Posted on 7/24/24 at 12:22 pm to
If the purifiers uses UV light that would oxidize any carbon into CO2
Posted by CajunTiger78
Member since Aug 2017
2879 posts
Posted on 7/25/24 at 8:16 am to
As someone else said, you do mean CO not CO2 correct?
Posted by CajunTiger78
Member since Aug 2017
2879 posts
Posted on 7/25/24 at 8:19 am to
CO (Carbon monixide) can be cross sensitive to Ozone (O3) which if your air purifier has an ionization feature it will produce ozone.

Thus the reason you CO monitor is showing higher level of CO exiting the air purifier.
This post was edited on 7/25/24 at 8:24 am
Posted by Theduckhunter
South Louisiana
Member since May 2022
1359 posts
Posted on 7/25/24 at 1:35 pm to
quote:

As someone else said, you do mean CO not CO2 correct?


I don’t think he’d be having this conversation if he had ~1,000 PPM of CO in his house.
Posted by CajunTiger78
Member since Aug 2017
2879 posts
Posted on 7/26/24 at 8:19 am to
Good point
Posted by baldona
Florida
Member since Feb 2016
23416 posts
Posted on 7/26/24 at 9:06 am to
I wasnt sure the ppm so only 10-20 ppm of CO is dangerous it looks like?

What’s the point of monitoring CO2? Inside a home?
Posted by Theduckhunter
South Louisiana
Member since May 2022
1359 posts
Posted on 7/26/24 at 9:49 am to
I think 50 PPM is the permissible exposure limit of CO.

I had never heard of monitoring CO2 in a home until now.
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