Rechargeable batteries for use with electroventilated respirators 3Mtm, use batteries for electroventilated respirators 3MTM.
The battery life is related to a new battery, suitably charged and with new filters used at room temperature and moderate working speed. Extreme temperature values, age and battery cycle, charging status, filter clogging and high working rates can adversely affect operating time.
If the application is time sensitive, please consult 3M to determine which type of battery should be used.