3M 65023QLHA1C-PS Pro MultiPurpose Respirator with Quick Latch, Medium Proprietary quick latch mechanism for easy to put on and take off with one hand when outside the contaminated work zone Adjustable head harness assembly features a three-size adjustable head cradle for a personalized fit For workplace/Occupational applications only Silicone face seal is a soft, yet firm face seal for comfort, durability and stability Unique valve design for easier breathing