Badger’s UNIVERSAL ULTRA AR-AFF FOAM EXTINGUISHERS are effective on Class A common combustibles as well as both hydrocarbon and polar solvent types of Class B flammable liquids, so they eliminate the application guesswork associated with other foams. The unique synthetic base of Universal Ultra Foam does not have any offensive odors, is non-toxic, environmentally friendly, biodegradable, and extremely simple to use and clean up.