Masks can generally be divided into two categories: protective masks and general masks.

Masks can generally be divided into two categories: protective masks and general masks.

Masks are mainly used to keep out the cold,And protective masks are mainly used to protect the daily life and work in a variety of particulate matter.According to the protected object Protective masks can be divided into daily protective masks, medical masks, industrial masks, and fire masks

Masks, coal mine masks and so on.

Daily protective masks, also known as civil masks, refer to those used in daily life .A protective device worn by Chinese citizens to filter particulate matter from polluted air. For workers from all walks of life .For the needs of personnel for the use of masks, both at home and abroad have developed some mandatory standards for protective masks, particles. Both physical protection and respiratory resistance are important tests for these special masks. Scholars at home and abroad have conducted a large number of studies on the particulate protection of all kinds of masks, including the study on the impact of airflow velocity on filtration efficiency and the study on the impact of respiratory rate on filtration efficiency, and the study on the filtration efficiency of N95 masks under circulation and constant flow velocity In this paper, the leakage rate and filtration effect of fire masks were studied, and the medical masks and N95 masks were studied

The comparative study of filtration efficiency and the development of a series of related test equipment.Among them, in particulate matter.The protection is mainly aimed at the filtration efficiency and suitability of the filter material was studied.

The protective properties of mask products have promoted the rapid and efficient development of the mask industry.However, in the past, there were only medical mask standards and industrial protective mask standards in China, which resulted in the civil mask market disorder and uneven quality. People did not know which kind of mask was suitable for them when buying masks.

On November 1, 2016, GB/T 32610-2016, China’s first national standard for civil protective masks, Technical Specifications for daily protective masks, was officially implemented.

The standard applies to air pollution in daily life. Protective masks worn by the general population to filter out particulate matter cannot be used in some hypoxic rings. Respirator Resistance Tester used in environment, underwater operation, escape and fire fighting and other special industries. It is also clearly stated that the standard does not apply to respiratory protective articles for infants and children. The general population should choose civil respirator according to the three principles of respirator protection, safety and respirator comfort. According to the survey, the current research on the protection and safety of masks has been relatively complete, and with the popularity of masks, people pay more and more attention to the breathing comfort of masks.

Breathe comfort research is mainly on wearing a face mask when breathing resistance research, on the national standard in our country at present is pointed out that only static respiratory resistance limit, this limit along with the development of the mask industry, gradually reduce, future masks industry will toward high security, high protection, low respiratory resistance in the direction of development.