The SR 76-3 Escape Hood is a filtering respiratory protective device combined with a hood and is designed for use in accidents involving chemicals. The hood is based on a Sundström silicone half mask, which is mounted in a hood made of chemicals-resistant material. The hoods are vacuum-packed in aluminum bags. The hood can be put on quickly and simply, without prior adjustment. The hood is available in two sizes and fits most adults and teenagers. The hood is equipped with combined filter SR 299-2, ABEK1-Hg-P3 and provides protection against all types of particles and following gas types: A1, organic gases and vapours, such as solvents, with boiling points above +65 °C. B1, inorganic gases and vapours, such as chlorine, hydrogen sulphide and Hydrocyanic acid. E1, acidic gases and vapours such as sulphur dioxide and hydrogen fluoride. K1, ammonia and certain amines, such as ethylene diamine. Hg, mercury vapour.