Available in Black Anti-fog – Ensures the mouth area is always visible Comfortable & snug fit Reusable and washing machine safe Improves communication with people who rely on lipreading through the use of a transparent window, eg, hard of hearing and teachers etc. Improves communication with people who may have anxiety issues with not being able to see the speakers expressions. Please note these masks are non-medical grade masks and not intended for use in medical environments. Product Code: DTMB