This is the one I got. Works well with a portable speaker that I have already, and it's very comfortable to wear. I pulled the foam off of the microphone tip and it works a lot better without it, while being under a respirator.
I'll be using a half mask respirator with a headset microphone tucked underneath.
Respirator - https://www.uline.com/BL_1092/3M-Half-Face-Respirators?keywords=Half+Face+Respirators
Respirator Filters - https://www.uline.com/BL_693/3M-Respirator-Particulate-Filters?keywords=P100+Filter
Headset Microphone - https://www.amazon.com/gp/product/B07X5L8B81/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1