Love the testing. I think the taped/non-taped results may diverge as time goes on and the filter becomes loaded. The static pressure of air filters approximatel

Love the testing. I think the taped/non-taped results may diverge as time goes on and the filter becomes loaded. The static pressure of air filters approximately doubles over the lifetime of the filter, and in an unconstrained system more and more air will be going around the filter instead of through it.