The mask generally does what you expect, but . . . The mask generally does what you expect on the inhale and is probably better protection for the wearer than cloth masks, even one's with filters where the air likely follows the path of least resistance around the filter. But exhaling forces air out of the sides of the mask which is still not great for everyone around you, but that's probably no worse than other masks. However, the front filter holder cover does not snap on very securely, and if you have it on for a little while the condensate (essentially drool) builds up on your own chin. It's also more cumbersome to take off and put on than most other masks.

Best PPE mask ever!! Was a blessing to have stumbled across Castlegrade company. They make the best reusable masks and cases for storage. Don’t have to worry about glasses fogging up, masks slipping off, adjustments or bruising! So comfortable to wear all day while seeing clients in the treatment room and definitely feel much safer! Their products are superior and customer service is outstanding! You guys rock! Thank you for making my family and I feel safer AND going green! ❤️

Materials look great and quality seems… Materials look great and quality seems good. Unfortunately it simply wouldn’t fit my face without leaking, nor my wife’s, nor my brother in Law’s. So, not safe enough to use for us in this pandemic, particularly with me working in the hospital. Too bad. I understand why returns aren’t possible during a pandemic, but a little bummed to spend the money on a product that we’re unable to use.

Design problems and poor fit around nose I've tried lots of disposable masks but this is one of only two elastomerics I've tried and for me it's unwearable. I have a small female face and bought the small size. Issues are: 1) the attachment point where the headstrap meets the mask body (only one) is positioned so that the "rim" of the mask is pushed hard against your face and this pushes flesh against teeth inside the mouth. The standard length strap supplied with the small size mask is too short; even on the longest setting, meaning strong pressure against the face. Very uncomfortable. 2) I could not get a good seal around the nose, reliably, no matter what I tried. I have a small and narrow nose and the mask gaped no matter how I positioned or tensioned it. 3) The strap is single where it attaches to the mask, then divides and is supposed to go one strap above and one below the ear. But the two sections of the strap are not independently adjustable and the lower strap sags and the upper strap slides down over the ears when you have long hair, and ends up too low on the head. If the higher strap is positioned above the occiput as is usual for N95 masks, the angle is wrong and because of the single attachment point the mask gapes even more around the nose, while the lower part of the divided strap, again, is loose. 4) The surface area of the filter through which air can pass is very small, meaning that there is high breathing resistence. 5) It is almost impossible for people to hear me speaking in this mask. 6) I have not worn it for long enough to be sure, but I suspect the mask would accumulate condensation if used for long periods; it feels clammy even after a few minutes. Including postage I paid $80AUD for this, and I regret the purchase. I did not bother contacting castlegrade to express dissatisfaction with their product as they were emphatic with their "no returns" policy. Unusually these days, there was no followup email to seek feedback.

This seems to be a very durable… This seems to be a very durable product, yet we were surprised by the small size. We had to adjust the straps; fortunately, despite no instructions about this, I was able to make the straps looser with a letter opener. The directions were in very small type--even with reading glasses, they were challenging to read. Despite these challenges, they seem very durable and should last a long time.