Patent ID: 11883693
Assignee: D. WHEATLEY ENTERPRISES, INC.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 14:
15. A powered air purifying respirator (“PAPR”) assembly, comprising:
a blower unit having an air inlet and an air outlet configured for removable connection to a hose system for delivery of cleaned air to a user;
a filter rail chassis having a first closed end and a second open end and removably attached to said air inlet of said blower unit at said second open end of said filter rail chassis, said filter rail chassis having at least one chassis inlet configured to removably and sealingly receive a filter canister; and
a portable power assembly removably attached to said blower unit;
wherein said hose system is configured for delivery of cleaned air to a user, said hose system having a hose inlet removably attached to said air outlet of said blower unit and a hose outlet configured for attachment to a user's safety mask, said hose system further comprising:
two circular cross-section air carrying conduits extending between said hose inlet and said hose outlet; and
an oval shaped outer tube extending between said hose inlet and said hose outlet and enclosing said two circular cross-section air carrying conduits.