I'm using an old respirator that is uncomfortable and doesn't fit under my face shield very well. Looking for recommendation for something that is lite weight, efficient and fits under a face shield. The face shield I am using is a Uvex Bionic.
I'm fond of the 3m 7500 series with the p100 round filters. They're light, fit fairly well with the silicon seal, have a bottom drain (which you can wash out if you sweat heavily in the summer),
and small enough to fit nicely under the uvex. They're also not absurdly priced.