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WHat kind of fans/pump/whatever should i use?

WHat kind of fans/pump/whatever should i use?

WHat kind of fans/pump/whatever should i use?

(OP)
Hi again.  Im trying to move the air in a room 16'x 20' from a central location, filter it with a hepa quality filter system,( maybe even better:charcoal filter etc.) and then return it to the room, without making a lot of noise.  Any suggestions on what kind of fans or fanpumps ( if there is such a thing ) should i use.
right now our prototype uses a fan on the intake side, filters, then a shop vac on the outside.  It moves a decent amount of air for its size but we need a quiter solution and more volume of course.
I also have limitations on being able to put the system out of the room, i cant go through walls to anything and i have a small space available in the ceiling.  
We dont neccessarily have to move the air of the entire room either.  A couple of systems that cleaned a 6'x6' or upto 10'x10' might work.
Any suggestions greatly apriciated.

RE: WHat kind of fans/pump/whatever should i use?

See 'clean room'.

Dirty air out the bottom, through the _entire_ floor, clean air in the top, through the _entire_ ceiling.  

They are noticeably noisy, but not to level that's harmful or that interferes with normal speech.

It's much cheaper to put the dirt- sensitive stuff into a 'clean box', and supply that with clean air, etc., because of the reduced volume requirement, and because people are the dirtiest thing in a clean room.


Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA

RE: WHat kind of fans/pump/whatever should i use?

MOOse:  How about the electrostatic air cleaners.  They are silent and can be put in a corner.  need to be cleanes every few days.

Regards
Dave

RE: WHat kind of fans/pump/whatever should i use?

Try to adopt the following measures.

1.Use a low speed fan preferably below 1000rpm,most probably forward curved fans
2.Try to keep the fan out of the room.If unavoidable,
 use an acoustic enclosure

3.Use attenuators on the inlet and exhaust side

4.Keep the the filters on the suction side of fan

RE: WHat kind of fans/pump/whatever should i use?

What I do with the electrostatic air cleaner in my room is to duct tape 3M Filtrete (R) to the air intake. This reduces cleaning of the plate cell to once per year in spite of 9 cats. The Filtrete(R) is of the sheet type that you can cut to size and put over an air intake opening. You could also use it to reduce the cleaning interval of the intake ducts of a forced air HVAC system by putting it over the air return registers.

The air cleaner was made for Sears and it is about 3/4 the size of a 2 drawer file cabinet.

Another trick that I have used is to get a 20 inch box fan and a 20x20x1 inch polyethylene sheet electrostatic filter of the washable type. I just simply duct tape the filter to the intake side of the fan and turn it on. A bit noisy but if you want to clean the air in a room fast and then let a plate cell machine take over, it works great!

I have allergies and fungal sinusitis so I know what works well.

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