I saw this item suggested in a review for an epoxy paint kit, suggesting its purchase. I've never worn a respirator for a home project before, but this paint - and the fact that it was being done inside a shower enclosure - encouraged me to save my brain cells with a mask. It is AMAZING. I put it on before I opened the two cans and mixed the activator into the paint. I kept waiting to smell something. I worked with the paint for a half hour and was still convinced that the paint smell was probably over-rated. Then I left the bathroom, went into another part of the house, and took off the respirator. OMG! The residual fumes in another room, separated by two closed doors and lots of open windows, was really potent. I am so impressed that this respirator completely eliminated the smell!