Originally Posted by kschachn
Originally Posted by Pinoak
I'm certain it does filter to 5 micron. Maybe not at 99% I'm not sure but to some degree I'm sure it does.
It looks and feels well made. I won't know exactly how it looks inside for a really long time though.
Yes it does, and so does my window screen. Without an efficiency rating that isn't meaningful.
The claimed efficiencey rating is on the box , sir. you would have to take it up with the manufacturer if you question the truthfulness of the claim. In the meantime ill just use the filter and feel confident that its probably alot more efficient than your screen door lol.