Easy-attach air-duct filter frame

Exhaust gas purification filter

Exhaust gas treating device

Expandable multi-ply obliquely oriented honeycomb filter media

Fan-fold filter for a forced air ventilation system

Felt-like layered composite of PTFE and glass paper

Fiber bed assembly and fiber bed therefor

Fiber bed element and process for removing small particles of li

Fiber bed separator

Fiberglass product

Fibers and filters containing said fibers

Fibrous filter media

Filamentary pad for improved mist elimination and mass transfer

Filter

Filter and method of making

Filter and method of making

Filter and method of making

Filter and process for the production thereof

Filter apparatus

Filter apparatus for filtering the air for an internal...