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Mask-based breathing apparatus

A mask and breathing mode technology, applied in life-saving equipment, breathing masks, breathing protection containers, etc., can solve the problems of limited range, short flow time and distance, etc.

Active Publication Date: 2019-05-24
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the range of contaminants that can be filtered is limited by the short flow time and distance through the filter

Method used

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Embodiment Construction

[0045] The present invention will be described with reference to the accompanying drawings.

[0046]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 Figures are merely schematic and not drawn to scale. It should also be understood that in the drawings, the same reference numerals are used to designate the same or similar parts.

[0047] The present invention provides a mask that uses inlet flow control and outlet flow control based on the breathing pattern of the user. The mask wall has regions of a pair of spaced apart membranes with filter m...

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Abstract

Embodiments of the present disclosure relate to a mask-based breathing apparatus. The mask uses inlet and outlet flow controls based on the user's breathing pattern. The mask wall has a region of spaced apart membranes with a filter material in the space between the membranes. At least one of the flow control devices provides a fluid coupling between the exterior of the mask and the spacing to provide lateral airflow through the spacing. The flow distance through the filter material is greatly increased, thus also greatly increasing the flow contact time with the filter material.

Description

technical field [0001] The present invention relates to a breathing apparatus in the form of a mask for supplying air to a wearer of the breathing apparatus by means of flow assisted by an airblower, such as a fan. Background technique [0002] The World Health Organization (WHO) estimates that four million people die each year from air pollution. Part of the problem is outdoor air quality in cities. The worst quality ratings are in Indian cities such as Delhi, where annual pollution levels are more than 10 times the recommended level. It is well known that Beijing's annual average pollution level is 8.5 times the recommended safe level. However, even in European cities such as London, Paris and Berlin, pollution levels are higher than WHO recommends. [0003] Since the problem does not improve significantly in the short term, the only solution to the problem is to wear a mask that provides cleaner air through filtration. [0004] Base masks in the form of bulky filter m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B18/02A62B18/08A62B23/02
Inventor 魏慧斌
Owner KONINKLJIJKE PHILIPS NV
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