"Really easy to fit and comfy for extended periods (though you are supposed to only use for up to 8 hours before disposal). I wear glasses and didn't have any issues with fogging from the vent. Thumbs up from me."
"I use these masks against fine lime screed dust , I restore Victorian tiled floors so the chopping up and cutting causes a lot of dust, the valve in this mask is also for aerosol gases I find it is very good for the type of sealer I use , in the past I used the double charcoal filter masks which were expensive. these do the job and can be thrown away and they work very well for the price."
"A dust mask is only as good as the seal it makes around your face, and I could feel air coming through around the nose clip area. So although the material of this mask is P3 rated you will never get the full benefit of that with this mask."