There are many mask brands, such as 3M, Honeywell, Yadu’s Kangaroo Doctor, Yunda, etc.

3M

3M is both the name of the company and Registered trademark, the anti-particulate mask products sold by 3M in China originate from different origins. In addition to obtaining the certification required by the place of origin, they have also obtained China Labor Safety (LA) certification. "3M masks" refers to all products produced by 3M that can be called masks. It is recommended that the KN95 series 9501V and 9502V have breathing valves, one is ear-mounted and the other is head-mounted.

Honeywell

Honeywell is a diversified high-tech and manufacturing company with a turnover of more than US$30 billion. All models have KN95 protection level, and most of them are ear-worn. Like 3M, those with letters in the model number have breathing valves. ?

Yadu

Henan Yadu Industrial Co., Ltd. produces disposable medical masks, disposable protective masks, and medical surgical masks. Meet the mask needs of various groups of people.