Nano-structure-based anti-haze mask with filtration and adsorption double functions

Abstract

The invention discloses a nano-structure-based anti-haze mask with filtration and adsorption double functions. The nano-structure-based anti-haze mask comprises a mask main body and a replaceable filter layer material, wherein four corners of the mask main body are provided with tying tapes; the top center of the mask main body is sewn with a plastic nose bridge depression bar; the mask main body consists of a cotton outer layer and a cotton inner layer; three sides of the outer layer and the inner layer are sewn, and upper ends of the outer and inner layers are open and are connected through an adhesive tape to form an internal accommodating cavity; the replaceable filter layer material is accommodated in the internal accommodating cavity. The upper ends of the inner and outer layers are open, so that the filter layer material can be conveniently replaced, and the mask is convenient to clean. The replaceable filter layer material comprises an electrospun nano-fiber filter membrane and a carbon nanometer hollow lattice adsorption membrane, and can simultaneously filter PM2.5 fine particles and adsorb toxic and harmful substances to realize a double protection function. The nano-structure-based anti-haze mask is a protective mask which is high in filter efficiency, can effectively block PM2.5 particles, is high in air permeability, is provided with the replaceable filter material and can be repeatedly cleaned and used.

Description

【Technical field】 [0001] The invention belongs to the technical field of health protection products, and in particular relates to an anti-smog mask with dual functions of filtering and adsorption based on nanostructures. 【Background technique】 [0002] In recent years, many provinces and cities in my country have experienced continuous smog, and air pollution has seriously affected people's breathing and lung health. The main "haze culprit" is fine particulate matter (PM 2.5) with a particle size of less than 2.5 μm in the air, also known as particulate matter that can enter the lungs. Due to its small particle size, it cannot be blocked by the respiratory tract. It can penetrate into the terminal bronchioles and alveoli, and deposit in the alveoli, unable to be discharged, affecting the gas exchange in the lungs. Long-term inhalation can lead to pneumoconiosis, pulmonary fibrosis, and even lung cancer. . At the same time, PM2.5 has a small particle size and light weight, ...

AI Technical Summary

Problems solved by technology

However, the cotton yarn masks and non-woven masks currently available on the market cannot effectively filter fine particles due to their large pore size, and it is difficult to play a protective role.

Anti-particulate masks such as N95 are difficult to popularize and apply due to large breathing resistance, inability to clean and repeated use

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