This was my first order from Kollecte. I had in the past ordered KF94 masks from an East Coast Korean company which for some reason stopped carrying Bluna masks. I have tried other Korean brand masks and Bluna Face Fits are the best. They do fit well and the strings on each side to pull out to tighten really help the fit. They also do not collapse in and out when talking. My wife whose face is smaller than mine had used Dr. Puri mediums before, but the East Coast Company also stopped carrying Dr. Puri. So I had my wife try my Bluna mask and she actually said the Bluna was just as good for her and probably a better fit for her than the Dr. Puri. The only thing I wish was better with the Blunas would be the company should make the metal nose piece a little longer. I think it would take less time to fit your mask with a longer nose piece. As far as Kollecte they seem like a reputable company. Before I placed my order with them I had some questions and wound up calling them about twice and the lady I spoke to was very nice, took her time with me, and answered all my questions. I do not trust the KN95 masks from China because of counterfeits. I feel the Korean KF94 masks are the best way to go to avoid counterfeit masks. (Especially since the Korean government regulates the industry well). So once again my wife and I are very pleased with the Bluna Face Fit, and we are happy with our experience with Kollecte. We hope they continue to carry Blunas and that they keep the price right.