With a convenient quick latch and proprietary 3Mâ„¢ Cool Flowâ„¢ valve technology for cool comfort, the pro multi-purpose respirator with quick latch helps you stay productive and protected. So you can keep your cool on the job. Part of the 3Mâ„¢ Pro Series safety products line that was designed for the way pros think, the way they shop and the way they work.