The TR-800-PSK is a complete Powered Air Purifying Respirator with an Intrinsically Safe motor/blower that includes everything required to get started for use in Paint Spray operations. The TR-800-PSK is a complete Powered Air Purifying Respirator featuring an Intrinsically Safe motor/blower and including everything required to get started for use in Paint Spray operations. The TR-800 is a motor/blower certified by UL with an intrinsically safe (IS) rating of Division 1: IS Class 1, II, III; Division 1 (includes Division 2) Groups C,D,E,F G; T4, under the most current standard (UL 60079, 6th Edition, 2013).