Gary M. Lemire;Mark A. Hansen;Daniel A. Desrosiers;James W. Teetzel
发明人:
James W. Teetzel,Gary M. Lemire,Daniel A. Desrosiers,Mark A. Hansen
申请号：
US12688676
公开号：
US08113198B2
申请日:
2010.01.15
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.
