Gas, Vapour and Particulate Filter D8094 protects against organic gases and vapours (boiling point above 65°C), inorganic gases, acid gases and ammonia as well as particulates. It also offers protection against formaldehyde upto 10 ppm Suitable for use with 3Mâ„¢ Secure Clickâ„¢ Reusable Respirators HF-800SD Series.