| http://www.w3.org/ns/prov#value | - An electret filter media that includes a thermoplastic resin and a compound of the formula Y2-A(R1)n???Y1, where A is benzene, naphthalene or anthracene, Y1 and Y2 are each independently R2-R3, R2 is an ester linking group or an amide linking group, R3 is an alkyl group having from 10 to 22 carbon atoms, R1 is R2-R3 where R2 and R3 are each independently as defined above, and when A is benzene, n
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