FreeMascot Professional OD 6+ 190nm-490nm Wavelength Violet/Blue Laser Safety Glasses for 405nm, 445nm, 450nm,473nm Laser (Style 4)

I've been using these with a 450 nm diode laser (Snapmaker 1.4 watt laser) and they appear to be very good at filtering out the blue (450 nm) wavelength light and yet allow other light through. The light amber colored lenses do distort colors but offers good visibility of the environment. The increased visibility offered by these glasses makes it much easier to do other activities while the laser is in operation. Highly recommend these for hobbyist working with diode lasers

I use them for my class 4 laser engraver.They work well but with lasers you don't want to get hit with stray laser light.So I built a laser Enclosure that has 2422 amber acrylic panels and ventilation fans that ventilate outside.The glasses are comfortable. Always remember Safety First !

Well made. You can tell it should hold up. I tried it on over my glasses and indeed they fit. I got it to go with my Peopoly Moai SLA Resin printer since it uses a UV laser and I've reason to believe the provided protective device is undependable. This should do the trick. Also, it appears just as pictured, with a remarkably nice case.

Very good product. would buy again

As expected. Comfortable wearing dark enough to do the job but not overly dark.

I got style 4 which according to reviews fit over top of other glasses and were also very form-fitting. They will fit over top of other glasses but they ARE NOT FORM FITTING at all. I can easily stick three to four of my fingers underneath the glasses between the glasses and my cheeks. There is also a big gap at the sides . The seller had stated in the questions and answers that these were a good choice for UVC lights, however without the form-fitting they are not. You will burn your eyes and permanently damage them. It's just a matter of the wattage of the light will determine how quickly you notice the damage. I'm not willing to even attempt to use these.

I had thought I had purchased glasses against 450 nm AND infrared. So, I tested the glasses against infrared without really looking at the order. OOPS. This version does not stop IR laser light. So, I re-read the advertisement for it and, sure enough, they ONLY stop 190 to 490. Which is fine for what I have (a 450 nm laser.) I had been looking at all the ranges and had several window tabs open but I chose the wrong one. Silly me.The view is great. (Everything is yellow. Red light gets through clearly, also.) A very small amount of 450 gets through but it has to be really strong 450 for me to be able to see it. This is perfect for what it's designed for. (Lol, AND for what it's advertised to do! :D ) Never shine it directly into the glasses while you are wearing them. I don't know if the glasses will survive and I don't want to risk it. Or me.

Laser googles seems to be working, I have not been blinded by my 450nm laser.

Good product