BROAD AirPro Mask Rechargeable Electrical Air Purifying Respirator with HEPA Filter

☀ RED Exclusive Edition, Full accessories configuration includes armband, extension tube and etc... ☀ HEPA H13 high-efficiency filter, filters PM2.5 by 99.9%. The filter should be replaced every 500 hours (about 2 months of a M-F 8 hour shift). ☀ UNIQUE POWERED VENTILATION SYSTEM, CONTINUOUS AIR SUPPLY: An axial flow fan runs at 1650 RPM, and clean air volume passing through the filter can be adjusted. Innovative honeycomb air intake cover, three-dimensional strengthened air intake, and spiral widening air duct design makes air flow more smooth. ☀ THREE SPEED ADJUSTABLE CONTROL: High-level 2.35 CFM for physical labor and sports, mid-level 1.77 CFM and low-level 1.18 CFM for daily use. A continuous stream of fresh air is sent to the mask, alleviating the stuffiness in typical masks. ☀ THREE-DIMENSIONAL MASK, FITS COMFORTABLY: Comfortable three-dimensional non-woven mask, the outer contour fits tightly to the face, preventing outside air from entering, and makes each breath clean and fresh. Adjustable nose clips. ☀ RECHARGEABLE AIR PUMP: The air pump is rechargeable and can be worn around the neck with a lanyard, or it can be attached to the helmet using Velcro.