Cheap blower for a shop monitor enclosure?

[Bill Stock]

I want to put a monitor in the shop to pass the time during maintenance activities. Building the enclosure is trivial, but what to use for a quiet, cheap blower? It would not have to move a lot of air, but I'd want a filter that would not clog easily.

[bigstick509]

I've got a old CRT monitor with a TV tuner and a LCD monitor for the shop computer and all I ever do is cover them when I cut MDF. Although I have thought it would be a good idea to follow your line of thinking. Looking forward to any suggestions.

[crokett]

I have a squirrel cage blower that came out of my fireplace hearth. It would be cheap, you can have it free, but dunno how quiet it is. At least I think I still have it.

[Mr__Bill]

An equipment rack fan with some filter material stuff in front of it. A used one can be gotten from a used/recycling computer place if you are in a city. Another option would be a filtered vent on the enclosure and then attach it to the dust collector..


Bill

[Bill Stock]

I was originally thinking of creating positive air pressure by blowing air in from out. But when I googled for cheap Hepa filters I got the idea of using a furnace filter. I would silde this in the back and put 3 or four PC fans blowing out the bottom of the box. I'd cover my outlet holes with speaker cloth or something similar to keep any dust entering the outlet holes when the fans are off. I might also protect the holes by ducting the output towards the back.

[BobSch]

I was originally thinking of creating positive air pressure by blowing air in from out. But when I googled for cheap Hepa filters I got the idea of using a furnace filter. I would silde this in the back and put 3 or four PC fans blowing out the bottom of the box. I'd cover my outlet holes with speaker cloth or something similar to keep any dust entering the outlet holes when the fans are off. I might also protect the holes by ducting the output towards the back.

Rather than the bottom, I'd put the fans near or on the top. Hot air rises.

[LCHIEN]

what you probably want is a muffin fan, about 4.75" square, about 50-100 CFM that runs on 115VAC

You should put it to evacuate your box and put a furnace filter on the opposite side of the fan to clean the shop dust entering the box.

These types of fans have been used for many years on electronics cabinets before the small DC fans now found in PCs and the like.

The lower the air flow the quieter they will be.

here's links i found, they run around $13 to 17 ea.
http://www.surpluscenter.com/item.as...tname=electric
http://skycraftsurplus.com/115vacmuffinfan.aspx
http://skycraftsurplus.com/115vacmuf...veryquiet.aspx
search for "muffin fan surplus 115V" or combinations thereof, should be able to fins some under $10.