Woodshop Air Filtration: Sizing and Picks
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Your dust collector grabs the chips. The fine dust that hangs in the air after you sand or cut is the stuff you breathe in. A ceiling-hung air filter cleans that up.
How to size one
Figure your shop’s volume: length × width × ceiling height, in cubic feet. For a good shop, you want the air filter to move that whole volume several times an hour. A two-car garage is about 20 × 20 × 9 = 3,600 cubic feet, so a 780 to 1,050 CFM unit cycles the air many times an hour.
| Shop size | Look at |
|---|---|
| 1-car garage or corner shop | 780 CFM |
| 2-car garage | 1,050 CFM |
| Large or tall shop | 1,350 CFM |
Our picks
ALORAIR PureCare 780S Shop Air Filter (780 CFM)
Smaller, lower-cost unit for a one- or two-car garage shop.
Check current priceALORAIR PureCare 1050 Shop Air Filter (1,050 CFM)
Hangs from the ceiling and pulls fine dust out of the air. Rated for about 1,100 sq ft.
Check current priceALORAIR PuriCare 1350 Shop Air Filter (1,350 CFM)
Pulls air from all sides. Rated for about 1,700 sq ft for bigger shops.
Check current priceTips from the shop
- Hang it near where you sand and cut, about head height to the ceiling.
- Let it run 20–30 minutes after you stop working. That’s when the fine dust is still hanging.
- Check and change the filters on schedule. A clogged filter moves a fraction of its rated air.
- It’s not a respirator. Wear a mask while you’re making dust.
Shop in the garage? Pair it with a garage dehumidifier to keep tools and lumber dry.
Rescue Remodeling handles moisture repairs, water-damage rebuilds and remodeling across Brevard County. Free estimates, and the owner answers.