About clearmill.org
A reference site for home workshop dust collection in Canada.
Purpose
clearmill.org provides practical reference material on dust collection systems for hobby woodworking shops. The site covers ducting configurations, hose diameter selection, separator types, and filter ratings — topics that come up repeatedly when setting up or modifying a small shop dust collection system.
Content is written for hobbyists and small workshop operators, not industrial settings. Canadian conditions are taken into account where relevant, including temperature ranges, common building configurations for garages and detached shops, and hardware availability.
What the Site Covers
- Cyclone separators and single-stage dust collector comparisons
- Duct sizing, branch diameters, and transport velocity requirements
- MERV filter ratings and bag versus cartridge filter types
- Seasonal and material-specific considerations for Canadian shops
Content Approach
Articles on this site describe established practices and reference publicly available standards rather than making product-specific recommendations. Where numbers are cited — velocities, filter ratings, diameter guidelines — they reflect values from sources such as ASHRAE publications and ACGIH industrial ventilation guidelines, or widely cited hobbyist shop practice.
Nothing on this site constitutes professional engineering advice. Workshop dust collection involves respiratory health considerations; the site provides reference information, not a substitute for professional guidance specific to your situation.
Contact
Questions, corrections, or suggestions can be submitted using the contact form on the home page.