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Dry-wet two-stage filtering mask

A technology of one-stage filtration and mask, applied in the field of dry and wet two-stage filter masks, can solve the problems of increasing air resistance, poor breathing, etc., to ensure the filtration efficiency, sealing and good filtration effect, without affecting the air permeability. Effect

Inactive Publication Date: 2015-10-21
刘明江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be worn in places with many people and poor air circulation. When exercising outdoors, in order to resist wind, sand and cold, or to move in an environment with air pollution, wearing a mask has a protective effect; while traditional masks have filtering performance and air permeability There is a great contradiction in the efficiency. To improve the filtration efficiency, the only way to increase the thickness of the filter material is to increase the density of the filter material, but this will increase the air resistance and make the wearer prone to discomfort such as shortness of breath.

Method used

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  • Dry-wet two-stage filtering mask
  • Dry-wet two-stage filtering mask
  • Dry-wet two-stage filtering mask

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the wet and dry two-stage filter mask includes a cover body 1, a filter ventilation device arranged on the cover body 1, a soft sealing strip 2 arranged on the periphery of the cover body 1, and the filter ventilation device includes a ventilation seat 3, The ventilation cover 31 arranged on the outer end of the ventilation seat 3, the dry filter sheet 32 ​​attached to the inside of the ventilation cover 31, the spacer ring 33 pressed on the inside of the dry filter sheet 32, and the wet filter sheet attached to the inside of the spacer ring 33 34. Press the hollow pressure ring 35 set on the inner side of the wet filter 34. Buckles 36 are provided on both sides of the hollow pressure ring 35. The vent seat 3 is provided with an L-shaped buckle groove 37 to cooperate with the buckle 36. The wet filter 34 is made of a filter membrane with low fiber density, and the wet filter 34 is soaked with ...

Embodiment 2

[0015] Such as image 3 , Figure 4 , Figure 5 As shown, the hollow pressure ring 35 is provided with a connecting strip 38 in the middle to prevent the dry and wet filters 32 and 34 from collapsing, and the ventilation cover 31 is provided with several ventilation holes 39 . When in use, paste 32 dry filters on the ventilation cover 31, then fasten the spacer ring 33 to compress the dry filter 32, then attach the wet filter 34 to the inner side of the spacer ring 33, and then buckle the spacer ring 33 to press. Tight wetness filter sheet 34, and wetness filter sheet 34 can soak purification liquid in advance, also can drip and sprinkle with dropper after installing or sprinkle with purification liquid, then buckle buckle 4 and just can use, simultaneously, because used The fiber density of the filter is low, so it will not have a large resistance to the ingress and egress of air, thus making breathing smoother.

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Abstract

The invention relates to the field of daily hygiene articles, and specifically relates to a dry-wet two-stage filtering mask. The mask comprises a mask body, a filtering ventilation device arranged on the mask body, and a flexible sealing strip arranged at the edge of the mask body, the filtering ventilation device comprises a ventilation seat, a ventilation cover arranged at the outer end of the ventilation seat, a dry filter attached to the inner side of the ventilation cover, an interval ring arranged at the inner side of the dry filter in a pressing manner, a wet filter attached to the inner side of the interval ring, and a hollow pressing ring arranged at the inner side of the wet filter in a pressing manner. According to the above structure, the mask employs a filter film with low fiber density, the filter film is additionally provided with liquid so that a water film is generated between the filter film fibers, the water film can block and absorb impurities such as dust in the air to the maximum, air inlet and outlet are not easily blocked, the filtering effect is guaranteed, the air permeability is not influenced, the sealing performance and the filtering effect are good, and dust, PM2.5, and toxic gases can be filtered.

Description

technical field [0001] The invention relates to the field of daily sanitary products, in particular to a wet and dry two-stage filter mask. Background technique [0002] Masks have a certain filtering effect on the air that enters the lungs. When respiratory infectious diseases are prevalent, wearing a mask has a very good protective effect when working in a polluted environment such as dust. It can be worn in places with many people and poor air circulation. When exercising outdoors, in order to resist wind, sand and cold, or to move in an environment with air pollution, wearing a mask has a protective effect; while traditional masks have better filtering performance and air permeability. There is a great contradiction in the efficiency. To improve the filtration efficiency, the only way to increase the thickness of the filter material is to increase the density of the filter material, but this will increase the air resistance and make the wearer prone to discomfort such as...

Claims

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Application Information

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IPC IPC(8): A41D13/11
Inventor 刘明江
Owner 刘明江