Derek Cole explains why modern sealed homes trap chemicals from building materials like paint, flooring, and adhesives, making indoor air worse than outdoor air. He recommends an Energy Recovery Ventilator to exchange indoor and outdoor air, a system required in commercial buildings but not homes.
It is worse in your house than it is outside. That is true, and I'll tell you why. Everything we have— cabinets, flooring, carpets— everything has glue, adhesives. All that stuff is off-gassing into your house, and homes today are built so tight that that off-gas has nowhere to go but your lungs because you're breathing it in. So there's no way to get out In the old days, the older homes had kind of a— didn't worry about energy efficiency like today's homes are. So with all the plastics and the wood and the glue and the formaldehyde from the carpet and all the stuff, paint, it's off-gassing and that's coming into your indoor, your home, and there's no way to get rid of it unless you have indoor air quality products in your house. Or if you have, it's called an ERV, we've installed it in newer homes. It actually brings outdoor air into the living space and then exchanges it. A lot of commercial buildings require you to do that. You're not required to do that in the house, and you should be because homes today are very, very tight, very energy efficient, and with that what you get is more of the chemicals and things in your house cannot get out of your house. So that is the problem of indoor air quality.
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