Aspirator/Resuscitator Oxygen Recovery Mask Large with Tubing Group_Allflex Global Small Male Blank Buttons The standard for measuring tear

The standard for measuring tear production for possible diagnosis of Keratoconjunctivitis Sicca (dry eye)

Built with sewn-in plastic stays to prevent sagging and heavy-duty Velcro® closures for a secure fit and breakaway safety

Maximum  28 ppm

it isn't foolproof

Aspirator/Resuscitator Oxygen Recovery Mask Large with Tubing Group_Allflex Global Small Male Blank Buttons The standard for measuring tearThe oxygen recovery mask facilitates post surgery, post trauma, and post smoke inhalation recovery. Mask features dual vents, not valves, to ensure unrestricted inhalation and exhalation to prevent unforeseen reduction or increse in oxygen flow. Includes a rubber mounted 22mm oxygen adaptor and 7ft of tubing. Easily cleaned with a 1: 20 solution of bleach and water. Made from durable polycarbonate, diaphram is tear resistant thermoplastic for a longer