Versaflo™ TR-300 PAPR Complete Assembly, Lithium-Ion BatterySignificantly smaller and lighter than existing 3M belt mounted PAPRs Weight is kept close to the users back, reducing the leverage effect that can cause PAPRs to feel heavier Slim profile is designed for use in tight spaces Simple, 1 button operation Two types of alarms one audible and one LED alert the user to either a low battery or low airflow Battery and filter can be changed quickly and easily by hand Smooth surfaces are less prone to snagging