Mask Obstruction Evaluation System

An evaluation system and obstructive technology, which can be used in testing respiratory protection devices, life-saving equipment, etc., and can solve the problem that disposable masks affect the breathability of wearers.

Inactive Publication Date: 2015-05-27
TAIWAN TEXTILE RESEARCH INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since disposable masks are often worn for a long time, the obstruction

Method used

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Embodiment Construction

[0022] The following will clearly illustrate the spirit of the present invention with the accompanying drawings and detailed descriptions. After any person with ordinary knowledge in the art understands the preferred embodiments of the present invention, he can change and modify it by the technology taught in the present invention. without departing from the spirit and scope of the present invention.

[0023] In view of the fact that the existing measurement methods of mask obstruction are mostly static and continuous feeding of dust in one direction, after a period of time, a dust filter cake will be formed on the mask, resulting in a very high impedance of the mask, obviously , does not conform to the actual wearing condition of the user. Therefore, the present invention proposes a mask obstruction measurement system, which introduces a device that simulates human breathing, so that dust is not easy to agglomerate on the mask, and the measurement result is closer to the actu...

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Abstract

A mask obstruction evaluation system comprises a wind tunnel cover body, a mask carrier, a breathing simulator, a pressure difference sensor, a draught fan and a dust feeding device. The wind tunnel cover body comprises the relative air inlet and the exhaust outlet, the mask carrier is arranged in the wind tunnel cover body and is used to install a mask. The breathing simulator is connected with the mask carrier to provide an airflow to pass the mask repeatedly, the pressure difference sensor is connected with the mask carrier to detect the breathing impedance in the mask. The draught fan is connected with the air inlet, and the dust feeding device is arranged in the air inlet to provide the dust to the wind tunnel cover body.

Description

technical field [0001] The invention relates to a mask obstruction evaluation system. Background technique [0002] Respirator is a protective equipment provided for individuals to wear to avoid being harmed by hazardous factors in the air, and it is also a checkpoint to avoid harmful substances from causing harm to the human body. A qualified respirator must be able to effectively reduce the chance of pollutants being inhaled by the wearer. [0003] The common disposable mask is the simplest respiratory protective equipment. Disposable face masks are widely used because they are lightweight, reasonably priced, and easy to use. Disposable masks can not only prevent external harmful substances from entering the human body through breathing, but also prevent the wearer from transmitting infectious diseases transmitted by droplets to others. [0004] Since disposable masks are often worn for a long time, the obstruction of disposable masks will affect its air permeability an...

Claims

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Application Information

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IPC IPC(8): A62B27/00
Inventor 张哲维锺泱佑胡明铨林诗音
Owner TAIWAN TEXTILE RESEARCH INSTITUTE
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