There are many brands of masks, such as 3M, Honeywell, Dr?ger, Southcore, Twelve Officials, etc.
3M
3M is both the name of the company and a registered trademark, and 3M sells anti-particulate matter masks in China that originate from different places of origin, and have obtained the China Laonan (LA) certification in addition to the certifications required for the place of origin.? The term "3M masks" refers to all 3M products that can be called masks. The 9501V and 9502V of the recommended KN95 series all have breathing valves, one is ear-worn and one is head-worn.
Honeywell
Honeywell is a diversified high-tech and manufacturing company with a turnover of more than $30 billion. The whole series are KN95 protection level, and most of them are ear-mounted, the same as 3M, but also models with letters have breathing valves.?
Delg
Delg Safety Equipment (China) Co., Ltd, a well-known (famous) medical equipment brand, began in 1889 in Germany, the international pioneer of medical and safety technology, the global medical equipment supplier, with strong technical force and perfect service system.
South Nuclear
Zhejiang Quzhou South Nuclear Special Labor Protective Products Technology Co., Ltd, South Nuclear, a well-known brand of security products, products are mainly anti-gas and dust masks, protective gloves, goggles, masks, etc., the former Ministry of the Nuclear Industry of China subordinate enterprises, has been committed to the personal protective products, especially respiratory protection products, research and development of the modernization of the enterprise.
Twelve officials
Twelve officials belong to Shanghai Dingya Biotechnology Co., Ltd. for Baodao glasses (Star Creation Group) subsidiary. It has branches, warehousing and logistics centers and chain stores in Guangzhou, Huizhou, Inner Mongolia and Hunan respectively. The overall scale has reached 150 people and growing. The filtration efficiency of non-oil particles above 0.075 micron is more than 90%
KP series:
KP100: The filtration efficiency of oily and non-oil particles above 0.185 micron is more than 99.97%
KP95: The filtration efficiency of oily and non-oil particles above 0.185 micron is more than 95%
KP90: Greater than 90% filtration efficiency for oily and non-oily particles above 0.185 microns
Expanded Information: KP95: Greater than 95% filtration efficiency for oily and non-oily particles above 0.185 microns KP90.
Applicable environments
Mainly applicable to non-ferrous metal processing, metallurgy
Mainly applicable to non-ferrous metal processing, metallurgy, iron and steel, coking, gas, organic chemical, food processing, construction, decoration, petrochemical and asphalt and other oily and non-oily particulate pollutants such as dust, smoke, mist and other oil and non-oil pollutants generated by 0.185 microns or more of the industry.
Baidu Encyclopedia-KP100 Mask