Air Purifiers

We have a wood heater in the living room. And that’s the only heat we have. But over the past few years, I’ve developed an allergy to smoke. I have an air purifier that I use in my bedroom but it blows out cool air and in the winter, it gets really cold. So do they make any that have a heat option, or something?

We had new carpet installed in our living room one week ago. Is it safe to let my 9 month old crawl on it now? We have an air purifier going in that room that is supposed to remove gases and chemicals (not just a basic HEPA purifier, this one has the carbon filter too). What do you think?

When I come back after a few hours or wake up in the morning (especially when the window is closed), the living room will smell bad. I assume there is mold growing in the carpet. Would an air purifier stop it from smelling?

I’m looking for a good air purifier that will suck up cigarette smoke out of the air. I don’t want to spend alot of money though. I have one already that I use in the bedroom, it’s a GE Hepa air purifier. I’m not even sure they make these anymore since I bought it several years ago. I love it, but it’s loud. I’m wanting to get one for the living room, but my husband won’t accept it if it’s loud, so I really need some advice as to which one to get.

I am trying to fight against allergens in my house, as my boyfriend is allergic to my cat.

I was considering buying a HEPA air purifier for the bedroom and a larger one for the kitchen/dining room/ living room area of my house. I’m also planning on replacing the furnace soon and could have a HEPA filter installed on the furnace then as well.

Would one of these be better than the other in term of cutting down allergens in the air? Financially, the individual units seem cheaper, but I feel like the furnace filter might be more effective as it would help the whole house.
Good individual air purifiers cost anywhere from 0-0 and I would have to purchase multiple. Getting a top-of the line furnace would cost even more. "Doing both" isn’t really an option.

I live in an apartment here and I am getting sick of all this crap from other people's cooking. It's an older building and they won't look into it.
I read HEPA is a better purifier but I don't know if it would stop smells from coming in my front door… it is shut so don't give me stupid stuff about shut your door, just too old of a building (renovation they are doing doesn't help).
Smells only hit me in the living room/dining room… about 350 sq ft I need to protect from smells.
Will a HEPA do this?

I just got an ionic air purifier. The brand is Ionic Pro Turbo. I put one in the bedroom and one in the living room. When I got back home the room had that smell these things give off (it smells fresh and clean), but I felt a slight bit nauseous. Not a lot at all, just a tiny bit, but I noticed it. Is this normal? Does anyone else have experience with these things?