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A Low-SWaP Powered Air Purifying Respirator (PAPR)


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In this Phase II SBIR project, Creare combined a compact, high-efficiency blower technology with novel respirator facepiece designs and a comfortable, low-leakage sealing approach to develop a powered air purifying respirator (PAPR) with a high protection factor and low size, weight, and power consumption (SWaP). The PAPR system provides higher protection factors than conventional loose-fitting PAPR technology and is more comfortable to wear than respirators that employ tight rubber seals against the users skin. Creares high-efficiency blower technology was scaled to supply air for breathing and high protection factor at the NIOSH 115 L/min flow rate required for tight-fitting PAPRS and the NIOSH 170 L/min flow rate requirement for loose-fitting PAPRs. A novel PAPR facepiece design was developed for versatile, lightweight service in field conditions with low respiratory hazard and negligible cutaneous hazard. Prototype blowers and facepieces were developed. Laboratory tests show the facepieces can provide protection factor greater than 2,000, and the blowers are efficient and low power. A prototype PAPR system will be delivered to the Combat Capabilities Development Command Chemical Biological Center (CCDC-CBC) for test and evaluation.



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