The 3M Versaflo TR 600 series Powered Air Purifying Respirator (PAPR) is a compact, lightweight, easy-to-use PAPR for protection against certain particulates, vapors, and gases. The TR 602N PAPR Unit 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.