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Breathing mask

A technology of breathing mask and mask, applied in the direction of breathing mask, breathing mask, respirator, etc., can solve the problems of airflow limitation, unpleasantness, difficulty, etc., and achieve the effect of small pressure loss, low power consumption, and low consumption

Active Publication Date: 2020-06-19
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This condensation may be uncomfortable or unpleasant for the user of the mask
[0011] The second problem is that when the air you breathe in is cold, the cold and dry air can cause the muscles around the airways to tighten as the body tries to limit the flow of cold air into the lungs
If a person already has lung disease or a condition such as asthma, the effect of cold air on the lungs can further exacerbate breathlessness
This can cause airflow into the lungs to be more restricted

Method used

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Embodiment Construction

[0070] The present invention will be described with reference to the accompanying drawings.

[0071] It should be understood that the detailed description and specific examples, while indicating exemplary embodiments of devices, systems and methods, are intended for purposes of illustration only and are not intended to limit the scope of the invention. These and other features, aspects and advantages of the devices, systems and methods of the present invention will become better understood from the following description, appended claims and drawings. It should be understood that the drawings are only schematic and not drawn to scale. It should also be understood that the same reference numbers are used throughout the drawings to indicate the same or similar parts.

[0072] The present invention provides a respiratory mask having an air heat exchanger for transferring heat from air exhaled from the mask chamber to air drawn into the mask chamber. The air heat exchanger includ...

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Abstract

A breathing mask has an air heat exchanger for transferring heat from air exhaled from a mask chamber to air drawn in to the mask chamber. The air heat exchanger comprises a first set of air flow channels in series with the filter for providing filtered outside air to the mask volume and a different second set of air flow channels for expelling air from the mask volume to the outside, and a thermal coupling between the first and second sets of air flow channels.

Description

technical field [0001] The present invention relates to respiratory masks. Background technique [0002] Air pollution is a worldwide concern. The World Health Organization (WHO) estimates that 4 million people die each year from air pollution. Part of the problem is outdoor air quality in cities. Nearly 300 smog-hit cities failed to meet national air quality standards. [0003] Official outdoor air quality standards define particulate matter concentrations as mass concentrations per unit volume (eg, μg / m 3 ). Of particular concern is pollution from particles smaller than 2.5 μm in diameter (termed "PM2.5") because of their ability to penetrate the gas exchange regions of the lungs (alveoli), and very small particles (<100nm) may Passes through the lungs and affects other organs. [0004] Since the problem will not improve significantly in the short term, the usual way of dealing with it is to wear face masks, which filter to provide cleaner air, and the market for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B9/00A62B18/00A62B7/10A61M16/06A61M16/10A61M16/00
CPCA62B7/10A62B9/003A62B18/006A61M16/0066A61M16/06A61M16/1045A61M2205/3344A61M2016/0027A61M16/107A62B18/02
Inventor J·R·麦加瓦魏慧斌D·P·凯莉R·A·H·雷克斯
Owner KONINKLJIJKE PHILIPS NV