Have you had birds?
Teflon/PTFE/PFOA/Fluoroplastics are deadly when heated and they are found in MANY common household items that heat up...Air circulation or closed doors will not protect your bird from these. They are EXTREMELY dangerous and there is no cure after exposure. Just recently, a member's husband cooked an egg in a pan that contained Teflon (he forgot). She lost approx 6 birds, and they were in separate rooms! He didn't burn the egg either...it is just that deadly.
The most obvious source=non-stick cookware, but the coatings can be really deceptive (mixed into metal, various colors, cloth fibers, clear-coat--often on microwavable paper or heating coils or internal).
Some common places where these hide: MICROWAVE POPCORN BAGS, bake-in-bag meals, self-cleaning ovens, toasters, toaster-ovens, hair straighteners, blow-dryers, space-heaters, irons, ironing board covers (yes, the cloth in many contain Teflon), rice-cookers, steamers, curling irons, hot-rollers, drip trays (under range), turkey roasting pans, slow cookers, humidifiers, cake pans, muffin pans, cookie sheets, air-poppers, air fryers, egg poachers, bread makers, and even WATERPROOF MASCARA LOL...that doesn't heat, so it is safer, but if your bird is an eye-preener then beware.
Also, do not use anything with a scent around your bird. NOOOOO candles (scented or non), air freshener, carpet cleaner, perfume, hairspray, nail polish, nail polish remover, shoe polish, paints, hot glue guns, cigarettes, burned food, cleaning products---Windex, Bleach, Scrubbing Bubbles, Lysol, Pinesol, Kaboom, Fabreeze, 409...the list goes on....ALL ARE UNSAFE.
Bird's respiratory systems are EXTREMELY sensitive and things that are fine for mammals can kill them.
Only use avian safe cleaners!!! F10 SC (yellow type) is an excellent cleaner and it is the closest thing to Bleach that is avian safe (kills all sorts of bacteria and viruses and is bird-safe when properly diluted). You don't even have to rinse it once dry.
Another safe option is vinegar +water (not as good at killing germs) but safe as long as you do not boil it in a coffee pot or dishwasher. Grapefruit seed extract (GSE)+ water is another bird safe alternative...Again, f10 is going to be the most powerful and it is very safe.
