My thoughts on this are pretty much the same as other reviews. The mask fits me pretty well, there is some distortion but it's not significant enough to annoy me, and it came pristine in the cardboard box. The adjustment straps are all really easy to use, better than most swimming goggles, although I will note that the loose ends of the fresh rubber straps sprawl straight out from the mask unlike the pictures show, so if you intend to wear this without a hood you'll look a bit Lovecraftian.

I bought this mask just last month and now I got the opportunity to wear it outdoors starting by going to the mall for the new normal. Since this is a new gas mask to my collection I had to test it out by taking a stroll until I got to the destination just to check some stuff to buy, and oh boy this mask made me sweat so much because it gave me a lot of time to get used to the form fitting. Here's what I noticed about the gas mask in terms of its features. Just like what the other comments says according to its size, I can verify also it's indeed around a Medium as it's digging through my forehead which will cause some irritation around the face, especially if you're new to wearing gas masks. I usually wear a size Large for gas masks so I know that this isn't a perfect fit for my face, in fact it feels a bit small to me that it's uncomfortably tight no matter how I try to adjust it properly. However, I didn't experience any fogging through the lenses for 3 hours straight and people were able to hear me out through the voice diaphragm just as fine when I tried inquiring with the store clerks but sometimes I have to raise my pitch a little high which isn't that bad at all. Overall, it's a decent mask like they said and sizing is odd so be sure to measure your face and head size before purchasing this mask as it's important to get the right fit for your face. Unless, you really need a mask to wear due to Covid -19 or to have something as a collection like I would do then it's quite the bargain honestly.

I wear medium size 2 masks, while this is supposed to be a "one size fits all" mask, it just doesn't sit right. It gets very uncomfortable around my forehead and chin after 15-30 minutes. There is quite a bit of distortion in three spots on the lens, down the middle, and on either side. The voice diaphragm is a circular grated metal bit on the left side and it gets highly saturated in just a few minutes. I suspect with time it may begin to rust. It is a bit easier to breath in and does not fog up all too much with heavy breathing. Overall, it's a decent panoramic gas mask, but your fitment may vary and the distortion is a major con.