i searched and found this thread. so thats why its being revived lol

but freon is actually heavier than oxygen so it sits low on the floor. if you ever leaked a huge amount in a room then you would want to make sure you stand up and not get on the floor. outside with a small amount you wouldnt have to worry about it. just dont blast the stuff directly in your face. the biggest thing about it is if you ever got caught its like a 10k fine.