3M™ Versaflo™ TR-611N assembly includes motor/blower (TR-602N), standard battery (TR-630), battery charger (641N), length adjusting breathing tube (BT-63), easy clean belt (TR-627), airflow indicator (TR-973), spark arrestor pre-filter (TR-662), pre-filter (TR-6600), 2 caps and storage plug (BT-953). The TR-611N assembly may be combined with 3M Full Facepiece Reusable Respirators.