发明授权
US07171966B2 Breathing mask with a superelastic seal 有权
呼吸面膜与超弹性密封

Breathing mask with a superelastic seal
摘要:
A breathing mask with a mask body, which has a seal at its edge, which said seal is in contact with the user's face, wherein at least part of the seal that is in contact with the user's face is elastically deformable with spring characteristics ranging from linear to progressive and at least part of the seal that is in contact with the user's face is elastically deformable with degressive spring characteristic.
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