Bullard EVA PAPRs (Powered Air Purifying Respirators) - Hood System - Double Bib for use without Headband -The EVA is simple, safe, and dependable Versatile respirator for particulate or chemical environments Lightweight, compact, well balanced design Compatible with a range of head tops In addition, the EVA offers Active Flow Technology, which maintains an airflow of 8. 5 CFM (high speed), 1000 Assigned Protection Factor (depending upon head top), and dual alarms for low flow and low battery. Finally, the EVA has a visual battery fuel gauge to check the