I remember when the customers would become concerned when I was wearing the mask. It was a good time for me to educate the client that the mask was for my protection from the mist within the area I was working.....often this mist cannot even be seen by the naked eye.I used to wear one but stopped. Customers would freak when I put it on for one thing. I was getting a rash when it was hot out and I felt it was doing more damage than good. We only spray ParIII, Tri Kill and Roundup so it's not really needed.