Product Name: Breathing Mask with Electric Mute Fan Mask Filter Electric Haze Mask Breathable Dustproof Protective Filter Face Mouth Model NO.: YAG-EHMW0 Shape: Dust Mask Mask Type: Safe-Type Color: White Material: ABS Mask Application: Breathable Dustproof Anti Haze Protective Filter E Trademark: YAGEMA Transport Package: 110*136*25mm Specification: 90x120mm Origin: China HS Code: 8421211000 Product Description Applicable people: workers in places with serious dust pollution, outdoor sports enthusiasts, and people with allergies to pollenfilter replacement frequency: slight pollution: 6-7 days; moderate pollution: 4-5 days; heavy pollution: 2-3 days; severe pollution: 1 day.Two-speed wind regulation. When one speed is set, it can be used continuously for about 5-7 hours. When the second speed is set, it can be used continuously for about 4-6 hours. The sound of the electric exhaust fan is weak, it can work for a long time.The filter is made of water-absorbent steam fleece, which can be used to remove the water vapor exhaled from the nose and mouth when the temperature is cold. The combined filter is replaceable and suitable for repeated use.The battery comes with a short-circuit protection board, it can automatically resume normal use about 6-8 seconds after the short-circuit.Specifications:Type: Electric Dust FaceMaterial: ABSBattery: 450mAh (Including)Features: Breathable, Dustproof, Anti HazeSize: 11.6cm x 9cm/4.57" x 3.54" (Approx.)Notes:Please be kindly noted,the listed product is produced and distributed abroad and subject to the laws of its country of origin.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Electric Dust Face2 x Filter1 x Charging Cable1 x Package BoxOr1 x Filter