Respirator capable of monitoring and indicating service life of filter element

Abstract

The invention discloses a respirator capable of monitoring and indicating the service life of a filter element, which comprises a mask body, a head band and at least one filter box capable of monitoring and indicating the service life of the filter element, and the filter box comprises a filter box base, a monitoring and indicating module, the filter element and a filter box cover. Wherein the monitoring and indicating module can be used for monitoring the air pressure and the concentration of one or more of VOC, Cl2, H2S, SO2, HCl, NH3 and NO in real time, and carrying out light and vibration alarm when related parameters exceed set threshold values, so as to indicate that the filter element has reached the service life and remind a user to replace a new filter element in time. According to the respirator, the monitoring and indicating module is arranged on the filter box base and can be repeatedly used together with the filter box base, a user only needs to replace the filter element with the expired service life, the service life of the filter element can be indicated in real time, and the use cost of protective articles can be reduced.

Description

technical field [0001] The invention relates to a respirator, in particular to a respirator which can monitor and indicate the service life of filter elements. Background technique [0002] Many work environments can expose workers to polluted air. In appropriate work settings, workers can use respirators (respiratory protective equipment) to help reduce the risk of exposure. Usually, the user cannot know the current performance and status of the respirator. If the failed cartridge is not replaced in time, it may cause damage to the body due to long-term inhalation of toxic and harmful gases / vapours exceeding the limit. For users who use anti-particulate filter cotton / dust filter box, if the filter cotton / dust filter box with excessive resistance is not replaced in time, it may also cause fatigue or damage to cardiopulmonary function due to wearing a respirator with overloaded resistance for a long time. Therefore, the timely replacement of respirator filter cartridges and...

AI Technical Summary

Problems solved by technology

However, as the use time of the filter cotton / dust filter box increases, the accumulation of particulate matter will greatly increase the resistance of the filter cotton / dust filter box, thereby increasing the difficulty of inhalation for the user

In fact, employers often do not have clear filter cotton replacement conditions and replacement plans, but only determine whether the filter cotton needs to be replaced based on the user's feelings, or force a limited replacement cycle, which may result in waste due to frequent filter cotton replacement. Or if the filter cotton / dust filter box is not replaced for a long time, it will cause excessive load to the user or damage its cardiopulmonary function

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