The 3M  Versaflo PAPR Assembly TR-613N includes motor/blower (TR-602N), standard battery (TR-630), length adjusting breathing tube (BT-30), high durability belt (TR-626) and Air low indicator (TR-971). The TR-613N assembly may be combined with 3M Versaflo branded headtops and filters or cartridges to create a complete, compact, light weight, Easy to-use PAPR for protection against certain particulates, vapors and gases. Single and four bay chargers are available to charge the battery included in the TR-613N assembly. The TR-613N assembly may be the prefered choice of customers working in a rugged environment with Air orne particulate hazards such as grinding and metal finishing applications.