the upstream edge in this manner the fluted material is still self supporting while decreasing the effects of clogging at the upstream face of the filter media 400 as shown in fig1 the pressure drop for air flow compares fluted filter media having standard b size flutes to the tapered filter media 100 also having a b size flute in addition a standard a size fluted filter media is compared to the crushed filter media 300 having an a size flute it can be appreciated that the pressure drop across the filter in both instances is reduced as compared to the standard fluted filter configuration while having the same filter volume and nominal flute size in addition as shown in fig1 as the filter media becomes loaded with dust it can be appreciated that a standard b flute has a much higher pressure drop than a b flute with tapered filter media 100 in addition a size a flute for filter media 300 with a crushed leading edge has a significantly lower initial pressure drop than a standard a flute it can be appreciated that with the present invention filter media is provided which has a substantially greater open area transverse to the flow which intercepts the flow this provides for increased efficiency with decreased restriction it is to be understood however that even though numerous characteristics and advantages of the.