Non-woven filter media with a meltblown and nanofibers

Abstract

Non-woven filter media are provided that comprise a first melt-blown layer comprising fibers made from a polymer material. The polymer material comprises a thermoplastic resin and at least one of a charge adjuvant and a nucleating agent. The media further comprises a second layer and a third layer arranged between the first layer and the second layer. The third layer comprises electrospun nanofibers. Also provided are filter elements comprising the filter media and bag filters for a heating, ventilation and air conditioning system.

Dependencies are inferred from the claim text.