You mean the rolling up the garage door or the Delta? LOL
Mine can be hung from the ceiling or set on a work bench. It has a fine filter and 3 speeds. it cleans the air in my shop every 8 minutes or so. It is a little loud but it sure works well.
Here is a link and you can of course check it out on google. now that you will have the model number.
http://www.amazon.com/DELTA-50-875-3-Speed-Filtration-System/dp/B00009LI48It may seem a little pricey, but I do not know how I survived without it. It odes a very good job of cleaning the air. It has a timer on it so I can let it run for a half hour or so after I leave the shop and it shuts off.
What else can I help you with? I have had mine for several years and have not had to change the inner filter yet.