I use very little of it snell, as I only do a very `light`bond....I only spray on in short bursts and very close-up to the system...I also move about a bit so any `fallout`[like fumes] in the air are avoided....you could get little cheap mask in a hardware/home improvements store just to cover your nose and mouth...they`re quite cheap and just secured with an elastic band around the back of the head.....something simply like that should do the trick.