Permagard Surface and Air is a 2 in 1 treatment that safely sanitises and protects without the need for electrical atomising equipment. When deployed, Permagard forms a covalent bond within the air-conditioning ducts, filters and all vehicle interior surfaces killing 99.99% of germs and bacteria for extended periods of time. This formulation is a broad-spectrum killer and a long-acting protectant that's also effective against mould and mildew.