<h1>Professional Protective Mask with high filtration.&nbsp;(breathing valve)</h1><p><span style="color: rgb(40, 40, 40);">·&nbsp;&nbsp;&nbsp;&nbsp;</span><strong style="color: rgb(40, 40, 40);">&nbsp;Approved quality standards</strong><span style="color: rgb(40, 40, 40);">, efficient filtration of PM 2.5.&nbsp;The exhalation layer reduces heat build-up and exhalation resistance inside the respirator to make it easier to breathe and help keep the wearer more comfortable.·&nbsp;&nbsp;&nbsp;&nbsp;Perfect for travelling through busy, public environments such as malls, markets, offices, public transportation and more. Idea for both indoors and outdoors.·&nbsp;&nbsp;&nbsp;&nbsp;Bacteria and dust filtration efficiency is ≥ 95%: made of quality activated carbon, non-woven and melt-blown filter cloth, which effectively filters out 95% of bacteria, exhaust, pollen, smoke, dust, chemicals, particles and fumes.·&nbsp;&nbsp;&nbsp;&nbsp;5 Layers of filtration and protection: 1st layer of cloth filters micron-level dust. 2nd layer filters industrial pollutants, automobile exhaust, passive smoking, and pollen allergens. 3rd layer of active carbon cloth filters micron-level dust. 4th layer offers filter density for smaller material. 5th layer of cloth filters out all kinds of harmful substances.·&nbsp;&nbsp;&nbsp;&nbsp;Comfortable Wear: High-quality elastic ear bands makes it quite easy to wear and comfortable for long periods of wearing. Customised facial design, 3D stereo tailoring, good fit and breathability·&nbsp;&nbsp;&nbsp;&nbsp;Package Content: 10 pcs.</span></p>