The RZ Mask is a reusable dust mask known for its comfort and effectiveness. The outer shell is constructed out of a moisture-wicking mesh material that allows skin to breathe and stay cool in warm weather. The outer shell holds a replaceable active carbon filter which is effective towards 99.9% of particulates down to 0.1 micron. The filter has a long lifespan allowing the user to save costs and create less waste over time compared to disposables. When worn， the mask allows the user a full range of motion and the ability to apply/remove the mask quickly without having to remove other PPE headwear. Two exhalation valves allow exhaled air to escape the mask keeping the inside dry and comfortable for long-term use.