The present invention relates to a multi layered media having nanofibers for use in filters and a process for its preparation. The invention also relates to an apparatus for the preparation of said multi layered media.

[0036] An object of the present invention is to provide an air filter 100 including a housing 102. The housing 102 includes a filter enclosing cover 104, detachably coupled to the housing 102 to form an enclosure for a primary filter 106 and an air inlet 108 for the air to enter into the primary filter 106 and an ai...