Some people modify the oil bath filter to accept a paper element, but if you keep the original filter clean and properly maintained, it's what the engine was designed to use. Why would it be necessary to flow more air?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!