i-mu Half Face Smart Electric Masks with Adjustable Silicone Hook&Loop Strap Automatic Dust Respirator Air-purifying Mask

Features:
[2 Speed Mode] Built-in powerful motor enables the low noise air-purifying mask to produce air with high efficiency and actively deliver fresh air with two modes. Ⅰmode provides smooth wind, suitable for daily use, such as cooking, doing household chores, etc. Ⅱ mode is suited to the state of exercising.
[Long Working Time] Built-in rechargeable 1000mAh safety lithium battery can work for approximately 4-6 hours and charging time just needs approximately 4 hours, which protects you from dust/haze pollution outdoors for a long while.
[Separated Exhaling Setting] Unidirectional separated exhaling setting divides the exhaled gas from breathing gas and lets the exhaled gas only come out, ensuring fresh air.
[5-layer Filter] Made up of 5 layers(protective layer, dust-holding filter, high filtration barrier against germs, anti-haze/oil filter, and skin-friendly filter), this mask filter perfectly purifies air reaching N95 anti-haze level.
[Excellent Quality Material] High quality silicone material used in mask edge and strap make the mask comfortable to wear for long periods of time; and elastic silicone band with fixed buckle provides secure wearing.
[Convenient Design] The whole mask is easy to clean for day to day wearing; the filter is replaceable and effortless to change.
[2 Manners of Wearing] There are optional wearing ways(earhook manner and head-mounted manner) for you to choose, meeting individual habit and demand.