what is a spit mask

A spit mask, also known as a spit hood, mesh hood, or spit guard, is a restraint device used to prevent a person from spitting or biting. It is a loose, breathable fabric sack that can be placed over a persons head to prevent them from biting or spitting. Spit hoods are made of mesh material that allows the wearer to breathe and see while containing any spittle. They are used by police and correctional officers to protect themselves from exposure to serious infections like hepatitis. Spit hoods have been criticized for being a potential suffocation risk. There is no national standard for the use of a spit hood or training for it, and if a department allows officers to use them, that department will decide its own policy. Spit hoods are being used more widely by departments and institutions throughout the world.