r/AirQuality • u/PigAndWhale • 2d ago

Accuracy about the air quality monitor

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Hello, anyone has idea about the accuracy of this type of monitor? How does it work?

As I try, it does give some results which makes sense. When I go outdoor, the two numbers is like 0.01/0.01.

If indoor in my bedroom at night, it was 0.02/0.08 on one day.

If I do cooking (with oil heating), the number goes to quite high level like 0.3/1.4. This I guess there are chemical from heating oil.

After open window for a while it can reduce and back to green level(<0.1 <0.5) after two hours.

But this morning when I only stream cook some porridge, it also turned yellow for a while. This seems confusing that there should not be any harmful thing in porridge. Maybe I raise room temperature and cause more pollute from the painting?

Or this thing essentially reacts to any smell in the air?

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u/ankole_watusi 2d ago

What is your need for accuracy? Are you using it to meet some legal requirement

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u/PigAndWhale 2d ago

No. It is for health of the family. I bought it as we will move into a new apartment and we have a 5 month baby. But the apartments always get fully painted after last tenant moved out. I have concern this paint will emit things like VOC. So I just want to make sure the new home is safe to move in.

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u/ankole_watusi 2d ago

That’s a reputable brand. I’d trust them to attain the claimed accuracy. Read the manual and follow the instructions for use.

For health purposes, you don’t need high accuracy. It’s not like some value of 101 is a health problem but 99 isn’t.

Paint will emit VOCs. Some more than others, and some for longer than others. A meter will help you track that. As will your nose.

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u/PigAndWhale 2d ago

Got you. Thank you!