It meant wearing each mask, so I tried to make strap tension equal. This one was less distorted than most, however. The same caveats about strap tension and mask size apply here. I assigned points to these values. Total possible was 36 points.
Results are below.
Incidentally, masks vary widely in price, for no good reason I have been able to discover. All of these masks have silicone skirts, tempered glass windows, wide comfortable straps and quick-release buckles. Forget everything you've just read and go for the best fit. If the only mask that seals to your face ranked worst in our review, it would still be the best mask for you. The mask should stick to your face after inhaling gently.