The Razaire 530 is the best portable dust collector we've seen. It features a 100 watt, 530 cfm variable speed impeller style fan which quickly draws the dust through the easy to change filter and away from you and your work. Made of durable ABS plastic and high quality components, the Razaire is clearly the best quality collector on the market. Manufactured in Canada, the 10 year guarantee (5 year on impeller) is unmatched by other manufacturers. Exhaust is to the side so the unit can be put against a wall on the back of your workbench. Unit measures 11 x 11" x 6" deep and weighs only 7.25 lbs with the filter installed.