Eric CHESBROUGH,Richard M. CHESBROUGH,Gabriel PUERTO
申请号：
US16358064
公开号：
US20190290166A1
申请日:
2019.03.19
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A breathing device including a housing portion and a mouthpiece portion. The housing portion has external and internal surfaces and a distal end portion and a proximal end portion. The mouthpiece portion has external and internal surfaces and includes a flared portion having a narrower distal end portion and extending to a wider proximal end portion, and the flared portion includes a depressed portion adjacent to the wider proximal end portion and configured to contact lips of a user.
