3M 7100098538 is a hood-type headgear designed for protection against silica hazards. It provides gas, particulate, and vapor protection with an assigned protection factor of 25. The medium/large size hood features a clear visor and a disposable suspension type. The included accessories are the S-133L headcover, TR-602N PAPR unit, TR-630 standard battery, BT-30 breathing tube, TR-627 easy clean belt, and TR-991 storage bag. The battery life ranges from 4 to 12 hours and it uses a standard capacity lithium-ion rechargeable battery. It also includes a magenta color-coded TR-6710N filter and TR-6700FC filter cover.