Air Filtration System Recommendations
Issue: Issue 95
Posted Date: 3/23/2004
From Women in Woodworking
Perhaps a bit after the fact, a woodworker asked for recommendations on keeping the air in her recently completed shop dust-free.
Two woodworkers thought their JET 3-speed filtration units did great jobs in their shops. Providing more detail, another forum member described the Grizzly 1-speed unit in his 500 square-foot shop. It has a remote control, hangs from short chains and runs very quiet. If he's used air pressure to clean table and machine tops, it only takes a couple of minutes to clear the shop of dust. Though cleaning the filter and bag are a pain, the job is only required a couple of times a month. He also cautioned that the system is not made to deal with sprayed liquids.
Using three furnace filters and a recycled squirrel cage motor, another forum member described her shop-made air filtration system. It hangs from the ceiling and has been working well for years. Some discussion followed about plans for such a system (someone suggested checking out Woodshop Dust Control: A Complete Guide to Setting up Your Own System by Sandor Nagyszalanczy), but there was agreement that the furnace filters and a high airflow source, such as a squirrel cage blower, were the main components.
The noise of a system worried another poster. He used a 3M full-face respirator and connected his shop vac to the dust ports on his equipment and turned the two on and off together.
Several posts then suggested Microclene air filters. Though the system only seems to be available in the UK and Australia, they got rave reviews from their owners, who indicated the systems (MC 1200 model was recommended) have won numerous health & safety awards.