3M™ Cool Flow™ Valve
This proprietary valve is designed to release your hot, humid exhaled breath quickly, helping to prevent an unpleasant build up of heat inside a respirator - a significant cause of discomfort to respirator wearers.
The Cool Flow valve’s ability to keep breathing cooler and more comfortable has been demonstrated through testing and thermographic imaging.
Learn more about the Cool Flow valve (PDF, 1.0 MB)
The 3M™ Cool Flow™ Valved Respirators are ideal for long periods of wear, especially where conditions are hot, humid or physically demanding. Learn more and see the Cool Flow valve in action.