3M Versaflo Heavy Industry PAPR Kit TR-300-HIK" Versaflo heavy industry PAPR kit. The battery life is 10 - 12 hours Ready to use HE PAPR system for industrial applications Headgear type: hard hat | Operation type: facility safety, maintenance, repair and operations and overhaul Suggested industries include automotive, food and beverage manufacturing, manufacturing, metal production and fabrication, military maintenance, repair and operation (MRO), transportation For use at elevations up to 2600 feet above sea level only Kit includes: M-307 Respiratory Hard Hat Assembly, TR-302N PAPR Unit, TR-326 High Durability Belt, TR-341N Battery Charger, TR-3712N Filter, TR-362 Spark Arrestor/Prefilter, TR-332 High Capacity Battery, BT-40 Heavy Duty Breathing Tube, TR-970 Airflow Indicator.