Nasal breathing mask has section which fits over nose and has mounting to which a strap is attached which holds mask on, connector at top of mask linking it to breathing hose and forehead shield attached to mounting clipping on to hose

摘要

Nasal breathing mask has a section (1) which fits over the nose and has a mounting (2) to which a strap is attached which holds the mask on. A connector (3) at the top of the mask links it to a breathing hose (5). A forehead shield (10) whose axial position can be adjusted is attached to a mounting which clips on to the hose.