Air Purifying Complete Systems

4 - 8 hr, Rechargeable Lithium-Ion Battery 1 5.5 - 13 hr, Rechargeable Lithium-Ion Battery 5 10 - 12 hr, Rechargeable Lithium-Ion Battery 1 20 in 1 4 - 12 hr Battery Life 1 5.5 - 13 hr, NiMH Rechargeable Lithium-Ion Battery 1 8 hr, Rechargeable NiCd Battery 1 Full Facepiece Headgear 1 Universal 1 Up to 12 hr, Rechargeable Lithium-Ion Battery 1