Twin 8 oz. Vari-Air Air Duster (Canned Air) from Peca Products VA-403A

A can this size simply cannot contain a useful amount of compressed air. So the name is false advertising. The chemical content is difluoroethane which is both flammable and poisonous in high concentrations.I use it to clean ear wax from ear molds for my hearing aids. It is discoloring the ear molds, but doesn't seem to hurt their function yet. Time will tell if the molds are actually damaged or not.

I like this product, however the can does freeze up easily.