3M Company is the inventor of particulate matter protective mask. In the United States from 65438 to the early 1970s, 3M Company pioneered a dust mask made of a new particulate filter material in the world, which covered the nose area of the crowd and was widely used to protect all kinds of workers exposed to high-concentration dust at work. In the following 40 years, it continued to study particle protection technology, and designed and produced a wide variety of protective masks with different functions.
Characteristics of 3M mask
The main protection objects of anti-particle masks are all kinds of particles. The mask body is usually made of anti-particulate filter material and fixed on the head by means of headband and ear strap. A space isolated from polluted air is formed in the mouth and nose area of a person, and the polluted air is forced to pass through the filter material of the mask by inhalation, and then enters the respiratory tract. This kind of mask usually has no parts that need to be replaced, and it needs to be scrapped as a whole after failure. Also called disposable mask or maintenance-free mask, it belongs to a kind of semi-mask respirator.
The protective mask for the purpose of preventing particles should solve the core requirements of good filtration efficiency, good fit to the face and good comfort. 3M has made an in-depth study on the face differences of different ethnic groups around the world, and designed masks with different styles to meet the adaptive needs of different groups of people. Because it is a natural contradiction to improve the filtration efficiency of particulate matter and reduce the resistance of filter materials to airflow, 3M relies on a series of proprietary technologies invented to solve this contradiction. 3M's protective masks for particulate matter sold all over the world meet the local compulsory certification standards, and can provide a variety of products with different protection levels, different styles, different wearing comfort and convenience to choose from.