Heating for powered air unit

A powered air purifying respirator (PAPR) with an active heating system is provided. 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 fi...

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Bibliographische Detailangaben
Hauptverfasser:	SERNFALT MATS U, NISSER FREDRIK A, SZULMANOWICZ MICHAL S
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FIRE-FIGHTING HUMAN NECESSITIES HYGIENE LIFE-SAVING MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	A powered air purifying respirator (PAPR) with an active heating system is provided. 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.