Gauze mask capable of preventing and controlling haze

Abstract

The invention discloses a gauze mask capable of preventing and controlling haze. The gauze mask is composed of a fiber fabric layer, a catalyst layer and a waterproof breathable layer from inside to outside; the catalyst layer is composed of powdered catalysts which comprise carriers, active components and cocatalysts; zeolite is adopted as the carriers, and the mole ratio of Si to (Si+Al+P) in the frame structure of the zeolite is 0.20; mixtures of titanium dioxide and cerium oxide are adopted as the active components, the mole ratio of Ti to Sb is 4:3, the titanium dioxide is in a anatase crystal form, and the weight content of the active components in the catalysts is 0.3%-10%; silver and iron sesquioxide are adopted as the cocatalysts, the mole ratio of Ag to Fe is 2:5, and the weight content of the cocatalysts in the catalysts is 0.3%-6%. After haze air passes through the gauze mask, PM 2.5 particles, nitrogen oxides and sulfur oxides are all reduced to the extremely low level, and therefore respiratory health is effectively protected.

Description

technical field [0001] The invention relates to the technical field of masks, in particular to a mask for preventing haze. Background technique [0002] Haze weather is a state of air pollution. Haze is a general expression of the excessive content of various suspended particulate matter in the atmosphere, especially PM2.5 (particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered to cause haze. The "culprit" of the weather. [0003] Fog is an aerosol system composed of a large number of tiny water droplets or ice crystals suspended in the air near the surface. It mostly occurs in autumn and winter, and is the product of condensation (or sublimation) of water vapor in the air near the surface. The existence of fog will reduce the transparency of the air and deteriorate the visibility. If the horizontal visibility of the target is reduced to within 1000 meters, the weather phenomenon of water vapor condensation (or sublimati...

AI Technical Summary

Problems solved by technology

[0013] (4) Not conducive to children's growth

In addition, due to the weak light and the resulting low air pressure in foggy days, some people will experience laziness and depression in foggy days

[0016] (6) Affect reproductive ability

[0022] The anti-smog masks of the prior art all purify the air through filtration or adsorption, but nitrogen oxides or sulfur oxides in the air cannot be removed by filtration or adsorption.