Questions tagged [air-quality]

104 questions
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Humidity Levels

What is a healthy and safe humidity level that I should try to keep my house at?
SamErde
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How to get rid of CO₂ in a house with A/C in hot summer?

Recently, I've been measuring the CO₂ concentration during multiple nights and the levels in the bedroom where I sleep are very high and unhealthy (over 1600 ppm). I use an AirVisual monitor, which is high precision and catches the trends. I opened…
Physther
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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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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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What is the best way to remove cigarette smoke smell from a house?

We're buying a house from previous owners that were smokers. The house still smells of smoke even with no furniture or upholstery in it. We plan to replace all the carpet with wood flooring. We're hoping that will do the trick. But our realtor…
Ben
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4 answers

Air Conditioner causing rapid high CO2 levels - anyone know why, or how to fix?

wondering if anyone knows why when I turn my recently installed high-efficiency air conditioner on, CO2 levels rocket up in my house? (In just 4 hours they go from around 500ppm to 1200ppm, and that's across all three floors of two-storey house plus…
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Does washing reduce asbestos?

So I was doing some work in the garage a few months ago and dislodged about a lemon size chunk of what at the time I thought was just some old concrete which fell on me and left some dust on a sweatshirt I was wearing. Fast forward a few months and…
alexpotato
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Letting fresh air through a window without letting noise in

I live in an apartment and it's pretty noisy outside, so I usually keep my windows closed. It does get pretty stuffy inside though, so I'm wondering if there's a way to get air through the window without letting a lot of noise in. I've seen some…
user1825464
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6 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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How do I make my room stop smelling so bad?

My parents keep on complaining about the smell, but I don't smell anything at all. I've put in two odor-maskers, but they're not helping at all. I also try to ventilate, but it's almost always way too cold to open the windows here (yes, even in the…
InquilineKea
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Do I need a face-mask when painting?

I am planing to spray-paint some cabinets. Do I need a full face-mask or not?
diyuser
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Is it alright to run furnace and turn off gas?

Is running a furnace with the gas pipe shut can cause any harm to furnace?
user3741580
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Remove the smell of cigarette smoke from upholstery

I purchased a upholstered chair from a garage sale for cheap, and cleaned all the dog fur and other debris from it, however there is now a lingering smell of smoke from the chair. It has been thoroughly vacuumed and cleaned with a foaming upholstery…
Resorath
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How can we measure the air quality index of our room?

My house is situated near a construction site and dust, particulates, etc gather in really quickly. My room is currently set up such that there are two different air filters running continuously around-the-clock. The Air Quality Index is a number…
Pacerier
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Can I attach a HEPA filter to the HVAC outlet?

I am currently living in China and want to improve the indoor air-quality. We have a Hitachi R410A HVAC. All the room in the house are controlled separately. Just to make it clear up front, I am not a technical guy and have no idea about air…
berend
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