3M™ Versaflo™ Powered Air Purifying Respirator Unit, TR-602N is the replacement motor/blower for 3M™ Versaflo Powered Air Purifying Respirators TR-600 series. Combine it with 3M™ Versaflo components to build a complete PAPR. 3M™ Versaflo™ Powered Air Purifying Respirator TR-600 Series is a compact, light weight, easy-to-use Powered Air Purifying Respirator for protection against certain particulates, Vapours and gases. The 3M™ Versaflo™ Powered Air Purifying Respirator Unit TR-602N PAPR is a replacement motor/blower unit. The TR-602N does not include a filter, airflow indicator, belt, battery, or charger. When combined with approved 3M™ Versaflo™ parts, the TR-602N becomes part of a NIOSH approved respirator assembly featuring: multiple speeds, audible, visual and vibratory alarms and the capacity to work with a wide variety of headtops, filters and cartridges.