1.Because the unique seamless sealing technology is adopted, the sealing effect is better, more lasting and not easy to leak compared with the ordinary filter;
2. High safety. The filter material is provided with metal protective screen on both sides.
3. It can provide 46mm, 50mm, 69mm, 80mm, 90mm and other thicknesses.
4. MPPs efficiency of laser scanning and counting one by one: 95% - 99.99995% (en1882).
5. There are many levels of filtration: h11-h14, U15, U16 (en1882).