Questions tagged [air-quality]

115 questions
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4 answers

What would cause excess CO2 in cellar

Question Update: We now know that the problem is Carbon Dioxide; any suggestions on what could be consuming oxygen and producing Carbon Dioxide would be great! We rent an old farm house that has recently been renovated, the cellar has been tanked,…
Dog Ears
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14
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Detecting cigar/cigarette smoke levels

I have a cigar lounge with a ventilation system, I would like to detect the "level" of cigar or cigarette smoke in the room. But I am not sure what sensor to go for, since these smokes contains a lot of different substances and I really want to…
Thomas Jensen
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7
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7 answers

What are the downsides of a pressurized room?

The door to a bedroom is closed 24/7. Someone told me, "Be careful. It sounds like you are pressurizing the room." The room is fairly pressurized, I suppose; I can feel air rushing out from underneath the bottom of the door if I stand outside the…
Fil
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2 answers

Poor air quality in a small room

Due to covid, my workplace has permanently closed its HQ. As a function of such, we now all work from home. Only catch is I don't have an office and I have kids! To remedy this, I turned a "Laundry room" turned storage room, into an office ( approx.…
Flujee
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What's the cheapest consumer method for testing my rental home flooring for CH2O (formaldehyde) off-gassing?

Trying to eliminate formaldehyde gas as a potential cause for some medical issues I've been experiencing. I've been having acute idiopathic breathing difficulty and other strange symptoms for months since moving into a rental home while shopping for…
0
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2 answers

Ventilating a room with no forced air without opening windows?

I would like to ventilate my bedroom because air quality monitors show CO2 levels rising above 2000ppm every night. I have two windows in the room, both with blackout blinds, but I prefer not to open them at night because they are street-facing and…
mmtauqir
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How should I ventilate an air-tight concrete room?

My house has an unused cistern that abuts the foundation. I've cut a doorway into it from my basement and would like to use it as living space. I would like to install a door to obscure and soundproof the room, but that would cut off the only…
Nathan Van Dyken
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I need a stronger fan for this CO2 scrubber

This image is a CO2 scrubber I'm trying to optimize. It's 3 inch PVC with a fan to draw or force air over soda lime to extract CO2 out of the air. It presently drops the CO2 level a small amount, and I want to boost its performance. The first fan I…
Don Branson
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Best way to cool down the house in the summer

Should I close all windows during the day and then open again at night so I get cooler air going through the house?
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How can I get rid of the bacteremia in the floating in the air!

How can I get rid of all that chemical bacteremia floating in the air!