I wanted to build a home-made dust filter - the basic "attach a furnace filter to a box fan" type. Since no stores have box fans this time of year and we didn't have an old one laying around, I ordered one from Amazon. $25 with free shipping - not a great deal, but it beat waiting until spring.
My first thought was to attach a cheap "basic" furnace to the inlet side of the fan and a good 3M Filtrete electrostatic one on the outlet. It would have been perfect except for one thing... Nearly no airflow.
I tried attaching them both to the inlet side, with the 3M on the inside and it worked great! Until I realized there was still almost no airflow through the filters - it was coming in the outer rim of the front of the fan and then out the center.
So, I now have just the cheap filter on the outlet side. Still not great airflow, but better. But of course, it isn't doing much to trap the most dangerous and bothersome dust.
Any suggestions? I may try one of those super-cheap fiberglass type filters on the inlet and the 3M on the outlet and see how that works.
I also ordered the HF 2HP Dust Collector today which should help a lot.
My first thought was to attach a cheap "basic" furnace to the inlet side of the fan and a good 3M Filtrete electrostatic one on the outlet. It would have been perfect except for one thing... Nearly no airflow.
I tried attaching them both to the inlet side, with the 3M on the inside and it worked great! Until I realized there was still almost no airflow through the filters - it was coming in the outer rim of the front of the fan and then out the center.
So, I now have just the cheap filter on the outlet side. Still not great airflow, but better. But of course, it isn't doing much to trap the most dangerous and bothersome dust.
Any suggestions? I may try one of those super-cheap fiberglass type filters on the inlet and the 3M on the outlet and see how that works.
I also ordered the HF 2HP Dust Collector today which should help a lot.
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