Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 21, 2017
Patent Application Number
14273611
Date Filed
May 9, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for filtering air of about 1 to about 10 microns particles at a greater than 40% filtering efficiency is provided. The method includes providing an air filtering device having a base, a fan functionally attached to the base, an air filter releasably attached to the base, and a substantially air impermeable outer sleeve; and activating the device for at least about 20 minutes.
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