Reduce heat and moisture build up inside your half-face respirator, with 3M™ Cool Flow™ Fan, 1040. It’s an innovative attachment for 3M™ 4000+ Series Reusable Half Masks, and helps you stay cool and dry over long work shifts. Our Cool Flow fan provides a noticeable cooling sensation on your face as you work and provides additional comfort without compromising on breathing protection. It attaches simply and securely to the front of the mask and features a single button control function to adjust airflow. As well as hot environments, it’s ideal for a range of work places and activities. It’s rechargeable and is supplied with a UK plug.