I hate all that stuff too, but I have to nit-pick the last sentence. Everything you breathe is chemicals. Everything that is good for you and bad for you is chemicals.
This in particular bothers me because I end up having this discussion with family members all the time who are convinced that "chemicals" are bad for you, and they only eat food without "chemicals".
I don't want to breathe natural pollen or natural smoke byproducts from natural wildfires or natural dandruff or fur/hair either.
I want to mostly breathe nitrogen, oxygen, argon, and a bit of water for comfortable humidity. I don't need anything more.
Of course this is technically correct (almost a cliche really), but I think we all realize that "chemicals" in this context means "novel untested synthetic chemicals." That's a mouthful, so we use shorthand.