We find them comfortable for the several hours we may wear the mask. I like the feature that the lower part of the mask can be pulled down to more fully cover the mouth and nose area and acts as a better seal. I do wish they were less pricey, but they do seem to work well.
We have been told that, unless soiled, that these types of masks can be used for two or three times, which can make their initial cost more palatible.
The positive side is that I'm sure the Walmart Buyers research items like this for effectiveness and that is the main reason I chose to buy this item here instead of somewhere else.