www.ishn.com/articles/94210-powered-air-purifying-respirator

Powered air-purifying respirator
October 5, 2012
The latest in PAPR technology for hazardous locations from Bullard, the EVAHL is a lightweight Hazloc PAPR with Active Flow Technology to keep air flow constant. Backed by independent 1,000 APF documentation and NIOSH approved, EVAHL can be used in multiple hazardous locations.

Bullard, www.bullard.com, (877) BULLARD. Booth 2100. Circle 300