SERNFALT, MATS U.,NISSER, FREDRIK A.,SZULMANOWICZ, MICHAL S.
申请号：
CA2926397
公开号：
CA2926397A1
申请日:
2014.10.20
申请国别(地区):
CA
年份:
2015
代理人:
摘要：
A powered air purifying respirator (PAPR) with an active heating system. The PAPR includes a powered air component designed to be carried by a user of the PAPR, the powered air component including a fan and a filter, wherein the fan draws air from a user's environment through the filter. The PAPR further includes an electronically controlled active heating element and a control system. The control system varies the power provided to the heating element and further disables the heating element when potential overheating of the heating element is detected. The present invention further includes a heating module for use with a PAPR. The heating module includes an electronically controlled active heating element. The heating element is disabled when the fan in the PAPR is not rotating.
