Personal air filtering and isolation device

  • US 20070240716A1
  • Filed: 07/22/2003
  • Published: 10/18/2007
  • Est. Priority Date: 02/15/2002
  • Status: Abandoned Application
First Claim
Patent Images

1. A portable air filtering apparatus comprising:

  • a face mask adapted to be held to a user'"'"'s head by straps;

    an exhaust filter positioned on said face mask;

    at least one one-way inlet valve positioned on said face mask for optimal air flow into said face mask;

    a one-way outlet valve positioned over said exhaust filter for optimal exhaust release through said exhaust filter and out of said face mask;

    a blower housing adjacent said face mask defined by a pressure plenum and a vacuum plenum;

    at least one tube connecting said face mask directly to said blower housing;

    a power means attached outside said blower housing;

    a blower positioned within said blower housing having an air flow means and driven by said power means;

    flow openings through said blower housing; and

    at least one filter cartridge removably attached outside said blower housing over said flow openings.

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