Note that your K&N instructions (if you ever bothered to read them) explicitly state:
DO NOT use compressed air.
Also note that K&N explicitly states not to use soap, as the proper cleaner is a non-detergent degreaser.
You are peddling nonsense sonny. Read your directions before you come on here giving people bogus and detrimental advice.
For those who wish to know the proper way to do things, here:
http://www.knfilters.com/clningins.htm