Whether ground or air attack Fomtec Enviro Class A foam concentrate, and Enviro ONE meet the most demanding requirements. Enviro Class A is tested and approved (QPL) by the US Forestry Service and has one of the lowest aquatic toxicity ratings of all the QPL listed product. Enviro ONE is particularly suited for exposure protection whilst also being an highly effective product for Class B fuel fires (tested against the UL 162 Type III test protocol).