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Re: Your point is................?? 850 1997

posted by  someone claiming to be jlfox on  Wed Dec 13 20:59 CST 2000 [RELATED]

> Your point is..........????????????????????? Your proposed idea is

> contrary to the laws of physics. A filter is basically a fine network

> of small obstructions to airflow that trap particulate matter.

> Therefore it will decrease the volume and/or pressure of air from one

> side to the other. The only way to beat this is to remove some of the

> "mass" of obstruction (ie filter), increase the volume of

> air being filtered at any one given moment, or force the air through

> the filter under pressure.

How about considering the surface area of the filter. This is the principle of the fanfold filter design and has a huge bearing on the above.

A flat filter can never be as efficient as a folded design.





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