Allegro Half Mask Constant Flow Airline Respirator 9920 FrenchCreek Fall Safety O2 Gas Monitors

O2 Gas Monitors

Battery Saver Circuit Automatically limits battery discharge to optimize battery life

After 12 hours of use

or to complement work safety gear for concert workers around amplified music for long periods of time

Allegro Half Mask Constant Flow Airline Respirator 9920 FrenchCreek Fall Safety O2 Gas MonitorsThe 9920 half mask airline respirator from Allegro offers a comfortable silicone facepiece. Low pressure continuous airflow gives continuous protection from airborne chemicals. Intended to be used with air supply provided by an ambient air pump. Popular with spray foam installers and welding applications. Low profile design fits under many welding helmets. Durable silicone rubber is hypoallergenic, resistant to many chemicals, and remains soft even