So there are several vendors out there that claim to make the best dust mask on the market, but what I find to be annoying is that mine tends to slip down on my nose a bit and not create a very good seal. I need one thats like a air mask for a fighter pilot, or something in that form, that will stay where it's supposed to and protect me from the elements. In know that when Im in surgery, that I'll put tape on my face mask and adhere it to the bridge of my nose so that it doesn't slip down and the tape blocks steam from going up into my eyes. Is this something that many of you do with your dust masks, or is there a dust mask out there that REALLY does what it claims to do and stays in place???