This is a great mask for woodworkers! I used it while sanding some oak and mahogany boards and it is comfortable, the adjustments stay in place, and it allows for plenty of air and not give you a feeling of lack of air or blocked air passages. Light weight and tight fitting with the adjustments and easy to put on and take off. I've checked to filters to see how much dust was blocked and it was a lot of fine sanding dust that would have gone into my nose and lungs. Every woodworker should have one of these for sanding and sawing large quantities of wood. Great product and a good price.