Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 9, 2021
Patent Application Number
20171229
Date Filed
December 29, 2017
Patent Primary Examiner
Patent abstract
Respiratory masks made of thermoformed EVA foam are provided. A mask can include a seal that contacts a user's face in use and a housing permanently joined to the seal. Both the seal and housing can be made of EVA foam. The seal and housing can be made of EVA foam having different densities. The mask can further include a frame removably or permanently coupled the housing. Headgear can be coupled to the frame and can couple the mask to the user's face in use.
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