3m 6800 6900s reusable full face mask repirators 3m 6900 p the 3m 8482 6900s reusable full face mask respirator large is available with the 3m 8482 bayonet connection system enabling connection to a broad range of twin lightweight filters to protect against gases vapours and particulates depending on your individual needs p p simple to handle and comfortable to wear the new exhalation port provides increased durability and is easy to keep clean p 3m 6900 reusable full fac