Allegro 9901-25 Full Face Mask Cover Lens Hearing Protection Though it also works better

Though it also works better with beards

personal monitoring is a simple as attaching the monitor via its alligator belt clip

and terminals are provided for wiring the relay to activate an external alarming device or some other device such as a ventilation fan

Peforms self-test at start up (like all monitors do)

Boots are constructed of a high viscosity and flexible PVC alloy

Allegro 9901-25 Full Face Mask Cover Lens Hearing Protection Though it also works betterThe Allegro full face cover lens are designed to protect the lens of the full face respirator sold in the 9200 series full face airline system. In order to prolong the life of the lens, we highly recommend that these be used at all times. They change out easily, protect from overspray, and protect the plastic lens from pitting. They are sold by the pack of 25.