Gray Activated Carbon Anti Dust/haze/ Formaldehyde Mask

9811 activated carbon anti-dust masks, products comply with GB2626-2006 KN95 standard, five layer filter, inner and outer layer of fabric: non-woven cloth layer: electrostatic adsorption electrostatic adsorption filter, activated carbon cloth, KN95 meltblown filter cloth. Product features 1 by electrostatic adsorption non-woven ahead of international principles, the fine particle diameter greater than 5 micron filter the rate of more than 95% 2.3D design, built-in shaped nose, and face tightly, forming a three-dimensional space to breathe, breathe not oppressed. 3 high-tech ultrasonic point belt, strong, beautiful, long time wearing no ears paining. The neck with built-in ear hook, belt neck with.4. and active carbon layer, filter harmful the gas is 30 times of ordinary mask