Non-entraining filter
OwnerMichael Wolfeinventor
Life of this patent
Estimating the term…
Abstract
A face mask for covering a wearer's mouth, nose or both, with a single layer non-entraining filter medium which repulses or rejects particulate matter rather than catching or entraining particulate matter.
Claims14
An air filter comprising a single layer non-entraining filter material having openings for filtering particles 15 microns or greater in diameter and means for supporting the single layer non-entraining filter material in a stream of air, wherein said filter allows the passage of air through said air filter.
An air filter comprising a single layer non-entraining filter material having pore openings of at least 0.5 microns and at most 100 microns for filtering particles and means for supporting the single layer non-entraining filter material in a stream of air, wherein said filter allows the passage of air through said air filter.
Dependencies are inferred from the claim text.