Are these filters ment to suck air thru them or are they ment to be blown thru them???
1774351
Best way to use is have fan sucking air through the filter. Fan should pull air through filter and exhaust "scrubbed" air outside the room/area where filter is located. Keep the length/run of duct as short and straight as possible. Seal all connections between filter, fan and ducting with duct tape to avoid any unfiltered air being exhausted.
1938433
From my experience you should only have air coming from the nozzle itself. The bottom part is the air intake and shouldn't have air blowing out of it. It sucks the air from the bottom though the filter, directly out of the nozzle
1772227
I would not try to suck the leaves out, would be better to blow them out. Might take a leave blower to do that. Would not recommend using with out a filter as it would get trash in the motor and shorten its life.
2200430
I use them to filter out dust, even though they do have little accordion folds. I would go for something with a bit more face coverage to filter out germs.
752655
I'm not sure? Wish I could be of more assistance. They do work well tho, once they've been pre-soaked. Seem to filter out nearly ALL of contaminants.
1624634
It may restrict the airflow, the problem is: it gets clogged with dust quite fast and you need to keep an eye on it, I usually clean it like once a week and I take the filters out when I'm playing a heavy game because you need a lot of airflow during that time.
291842
You can rotate them either way to blow air in or out. I placed my both ways for circulating air around the graphics card.
226188
Not really. They keep air out. They will not keep pressure in the container-it will go flat
778857
I took a look at the filters I bought and couldn't find any kind of holes throughout the filter, not even tiny ones. You might want to post a picture for people to compare. In any case, the filters are supposed to stop tiny particles of dirt. Any holes will defeat the purpose.
465379
Some argue that filters create a bit of distortion, especially flare. While I've found this to be true with cheap filters, I find these B and W to be great protection with at least no "field relevant" distortions, meaning if you put then through a rigorous "lab" like test, you might prove they cause some flare, but I have never noticed a difference with the filters on or off. These are great filters..
424675
I would say that these filters would keep sand from being sucked into your filter. I use them in the tank where I put newly born baby Guppies.
247768
I think so. One side is black (the side shown in the photo) and turns grayish whitish from dust, etc. as it filters the air that passes through it, as long as you insert the filter in the appropriate direction.
962912
Unless I am misunderstanding your question, painting is exactly what these filters are for. I am using them to paint my entire house interior with an airless sprayer and they work great. No fumes and do not clog.
432962
Those are just exhaust kind of thing where the air blows out from once the vacuum machine is started for use. I have never cleaned them and don't think they open for cleaning.
1940225
Hello there..It is always preferable to put rear fans blowing out. But be sure you are creating a single air flow direction. You may not need intake fans and create enough negative air pressure within the case that air will enter through any other openings, but it's also preferable to put filtered intake fans with more capacity than the outlet fans so you always keep the dust where it should be and a fresh computer case.
1140841
They have small vent slots so a little air comes in but they are great with my contacts on my motorcycle! I hope this helps!
1602030
It pulls air in from the front and blows it out from the back. If I were you, I would not turn it around. You want it to filter the air not just move it.