Whether a mask can have a higher filtration efficiency, and its structure design, as well as the quality of the filter material, there are related.
Secondly, when choosing a mask, you can't just look at its filter efficiency value, but also need to see does it fit your face, it is best to choose a regulatory mechanism and relatively flexible mask, such as LIFAair.
Video link:
https://youtu.be/uraWnrDXiDs
Tel: +358 9 394 858
Office hours：Weekdays 07.00-16.00 (GMT +2)
E-mail: europe@lifa-air.com
Office address: Vellamonkatu 30 B
00550 Helsinki, Finland
Tel: + 852 2511 7028 / + 852 2511 7076
Office hours：Weekdays 09:00 － 18:00 (GMT +8)
E-mail: asia@lifa-air.com
Office address: Unit D, 9/F., Kwai Shing Ind. Bldg., Phase 1,
36-40 Tai Lin Pai Road, Kwai Chung, N.T., Hong Kong.
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