Excellent N95 Alternative I'm an IT technician who works at COVID testing sites along with hospitals and urgent care clinics. Suffice to say, I'm constantly exposed to suspected or positive patients and need excellent PPE. As such, I usually wear an N95 for hours on end, which ends up crushing my nose, since getting one that actually fits perfectly is nearly impossible these days. The Castle Grade mask is a game changer for me. I did a rudimentary fit test and confirmed that there were no leaks. I've been wearing this for hours on end and my nose still feels fine. Plus, my breath is less muffled than when I wear my N95, meaning that staff members can actually make out what I'm saying, not just pretend to. I plan on recommending this to my other coworkers as well.

Picked wrong size because at the time… Picked wrong size because at the time did not see any videos on the site to explain how to measure for the size. Last week saw videos showing how to wear and determine size needed, so from that found that i had ordered one too large ane wasted my money getting one too small plus all the extrra filters I orded for it, so I wasted my money and so last week I orded a new one which is the smaller adult size and the side straps! Otherwise I think it is a great product. So glad to be able to get one.

Seems well-made and comfortable Product arrived quickly and seems to be quite well-made and as if it will be comfortable to wear over time. I haven't given it a real try yet as I purchased them with an intent to wear in more "risky" situations and/or if someone in my immediate family gets sick, as opposed to everyday use. That said, I'm happy to have something more effective on reserve should either of those situations arise.

Don’t Waste Your Money Received four masks today for two adults. The masks are useless, no seal, so air simply passes around the mask, not through the filter. Their return policy does not allow for returns based on fit or effectiveness, in effect allowing them to sell to new customers without having to pay back money when the masks are received.

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.