Breathing mask
A technology of breathing masks and respirators, which is applied in the field of air purification, can solve the problems that fine particles cannot be completely filtered, harmful gases cannot be effectively filtered, and the wearer's speech and communication are affected, so as to achieve effective protection and filtration, and facilitate speech and communication.
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[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for ...
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