For easier breathing and more comfort, get the 4700 N100 disposable respirator with Dura-Mesh shell that resists collapsing in heat. This particulate respirator is designed to provide more comfort and durability. In addition to this, it can be fit perfectly well on your face. The 4700 N100 disposable respirator is metal free and lasts longer. With easy-breathing wave design, it is ideal for various applications such as pharmaceutical, manufacturing, battery manufacturing, welding and more. It is used in industrial environment for the safety of workers. This disposable respirator is designed to provide durability and comfort.