Therapeutic respiration device
Tracheotomy mask
Two-point/four-point adjustable headgear for gas delivery mask
Unidirectional fluid valve
Unidirectional fluid valve
Universal head harness
Universal oxygen mask bayonet and bayonet receiver deflector
Unobtrusive personal air filtration device
User interface having a pivotable coupling
Variable aperture venting for respiratory mask
Ventilation mask assist device
Ventilation mask with forehead support
Wear article with detachable interface assembly
Yoke for the harness of a respirator