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1. (WO2018004555) POWERED AIR PURIFYING RESPIRATOR WITH CYLINDRICAL CARTRIDGE

Pub. No.:    WO/2018/004555    International Application No.:    PCT/US2016/039954
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Jun 30 01:59:59 CEST 2016
IPC: A62B 7/10
A62B 17/00
A62B 18/00
A62B 23/02
Applicants: HONEYWELL INTERNATIONAL INC.
Inventors: KUMAR, Garaga Phani
PATIL, Swapnil Gopal
PALACHARLA, Praveen Kumar
CHAUDHARI, Samit V.
Title: POWERED AIR PURIFYING RESPIRATOR WITH CYLINDRICAL CARTRIDGE
Abstract:
Embodiments relate generally to a powered air purifying respirator (PAPR) comprising a housing that is less than approximately 7 inches in width; a cylindrically shaped filter located within the housing; and a blower located within the housing, operable to force air through the cylindrically shaped filter. The cylindrically shaped filter may comprise a first filter layer and a second filter layer, wherein the first filter layer may comprise a particulate filter, and wherein the second filter layer may comprise a gas filter. In some embodiments, the second filter layer may comprise carbon particles.