Re:Air Pollution in Our Homes
by bluGill on Wednesday May 08, 2019 @11:21AM
(#19859654)
In most homes the "exhaust hood" doesn't vent to outside. It filters the big particles out and mixes the rest. I'm not sure if this is better or not, but the difference isn't much, and after a short time they are the same.
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The big particles are not what is most dangerous. Range hoods that recirculate air are not helpful. All kitchens should have externally-exhausted vent hoods, and it's even more important when using gas ranges, since a lot of harmful combustion byproducts are also being created (NO2, CO, etc). Sadly as you point out, this is far less common than it should be.
Re:Air Pollution in Our Homes
by rootusrootus on Wednesday May 08, 2019 @12:36PM
(#19860523)
In my experience [in the US, particularly the PNW] most single family homes vent outside, but it isn't uncommon for dinky apartments with retrofitted exhaust hoods to simply filter and recirculate.