Puwei core meets the highest standards of American medical masks, and has good filterability, which not only prevents particles but also prevents droplets. The filtration efficiency is 99.8% for particles as small as 0. 1 micron, and 99.9% for bacteria or virus carriers as small as 0.3 micron (common in droplets). SecureFit patented technology is adopted to adapt to different face shapes and achieve a high degree of fit. At the same time, the six-point support disperses the pressure, and there is no ligature mark on the face, which is very comfortable to wear. It's just that the price is not very close to the people, JD.
Starting from me, * * * is the same as fighting smog. Drive less, travel environmentally, use clean energy and other technologies to vigorously develop a low-carbon economy.
Establish and improve the system of laws and regulations to control smog according to law.
Evacuate people and industrial enterprises
Strengthen the comprehensive control of motor vehicle exhaust emissions.