I ordered the Black Respirator Dust Proof Mast With Filtered Activated Carbon for my husband. He suffers from Asbestosis and has a really hard time breathing outside. Anything in the air irritates his lung and causes the portion taken over by Asbestos to hurt. With this wonderful mask, he is able to work outside on his motorcycle, in his shop, doing light motorcycle painting, welding, sawing, the types of things men do in their shops. The Respirator Mask makes it so much easier for him to breathe. I like this item so much, that when he is in the house, I use it when mowing grass. This is a great item that we truly love.]