I tested one of these last night and have added it to the table in the first post - item #16. The one I tested is not *exactly* like the one in your link, but it's very similar and I suspect that all filters of this type will perform about the same. It blocked 25% of the air flow, which wasn't as bad as I thought it'd be. It's definitely one of the quietest filters that I've tested - I couldn't hear any difference with the filter on or off when using the S-Flex.
I'm willing to bet that no animal fur is ever going to get through a filter like this and it'll likely keep out all but the finest dust, too. It'll probably start to get clogged up pretty quickly, tho - it'll need to be cleaned frequently so that it doesn't become even more restrictive.
Hi riccardo. I'd actually considered using window/patio screen when I started thinking about the meshes. The main deterrent for me was that I want a shiny silver color and those types of screens are usually dark gray or black. They also have a fairly open weave relative to most of the meshes that I've been looking at - good for airflow and larger debris (pet fur and large dust particles) but not as good for preventing the smaller dist particles from getting into the case. Still... I bet it's as good or better than many of the screens that come with the cases these days.






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