A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.
申请公布号
EP2129443(A4)
申请公布日期
2015.04.01
申请号
EP20080732637
申请日期
2008.03.21
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
WALKER, GARRY, J.;MURPHY, ANDREW;CURRAN, DESMOND, T.;PARKIN, DEREK, A.;INSLEY, THOMAS, I.;FERNANDES, MARK, A., J.