☀ Use H13 grade HEPA high-efficiency filter materials, the filter aspect must be changed for each 500 hours, the consumables solely value three cents per day. ☀ UNIQUE LARGE CIRCULATION POWER VENTILATION SYSTEM, CONTINUOUS AIR SUPPLY: An axial movement fan run at 1650 RPM, in order that the clear air passing via the filter aspect could be accelerated and conveyed with out stopping. Modern honeycomb air consumption cowl, three-dimensional strengthened air consumption, decreasing wind resistance. Spiral widening air duct design makes air movement extra easy. ☀ THREE GEAR ADJUSTMENT TO PREVENT STUFFINESS: Excessive-level 2.35 CFM for bodily labor and sports activities, mid-level 1.77 CFM and low-level 1.18 CFM for each day use, swap freely. Computerized contemporary air provide mode, exterior air might be filtered by the booster fan, filtered via the H13 HEPA filter, and rushed out alongside the round air duct, a steady stream of contemporary air despatched to the masks. Resolve the issue of stuffiness generally masks, and ship clear air to the mouth anytime and wherever. ☀ 3D THREE-DIMENSIONAL MASK, FITS HUMAN FACE COMFORTABLY: Comfy three-dimensional non-woven masks, the outer contour matches tightly to the face, prevents any exterior air from getting into, and makes every breath clear and contemporary. Adjustable nostril clips, press the sides, repair each side of the easy-to-release nostril wings, and successfully isolate the polluted air. ☀ RECHARGEABLE AIR PUMP, SEPARATE PUMP AND MASK: The air pump is rechargeable and could be arm carrying, helmet sticking and neck strapping.