I'm returning to woodworking after a long break and I've noticed that the approach to dust management has changed a lot. I'm trying to figure out when it's necessary to wear a mask or respirator, even with good dust extraction and filtration systems in place. Right now, I'm working with Festool tools connected to a CT Mini HEPA extractor and I have plans to add a Oneida Mini Gorilla for a CNC router and maybe a planer or jobsite saw later on. I also have a Powermatic PM 1250 electrostatic air filter for finer particles.
Recently, I measured the air quality while working on simple tasks like cutting plywood and milling tenon holes, and my air quality meter showed very low PM2.5 levels, usually below 5. I didn't feel the need for a mask because the air seemed clean and the readings were low, but I'm uncertain whether I should rely solely on these metrics or if there are specific thresholds or feelings I should be aware of when considering masks in woodworking. This workshop of mine is about 20x40', but I was focused on one end while working.
3 Answers
Great question! I've learned that it's always better to err on the side of caution. I wear a mask any time I'm in the shop, especially when doing something that creates a lot of dust like routing or sanding. Even with a good filtration system, you can never be too sure about what's floating around in the air, particularly with materials like plywood and MDF that can release harmful particles. It's just a good habit to wear one whenever you’re working with wood.
Your setup sounds solid! While good extraction helps a lot, I think additional overhead air filters can make a big difference. But in terms of wearing masks, I say: mask up whenever you're doing anything that creates even a little dust. It's just simple preventive care for your lung health. There's no reason not to wear a mask when working, and it keeps you safe in the long run.
Honestly, I think a mask should be your go-to whenever you step into your workshop! I know it sounds paranoid, but even just wandering around can expose you to particles. If you can smell the wood or dust in the air, or if you’re about to sand or cut, just throw on a mask. It takes just a second, and it saves your lungs a lot of potential trouble down the line. Plus, since you’re dealing with materials that can be risky, it’s wise to be proactive about lung protection!
Thanks for the tips! I guess I’ll make the mask a part of my routine from now on.