The device they use costs like $1,500usd on alibaba but shipping would be a lot. I believe the mask you linked me to will work but I wish it had more diodes. The other issue is the battery. I wish these companies allowed us to replace the battery. After a year, battery loses noticeable amount of energy. You can replace the battery yourself if you're familiar with soldering. It's not too difficult. I want to measure/try a yellow/amber device for my youtube channel. If you find any on amazon usa that you would like me to test, please let me know. I am thinking about getting/testing this one:

https://www.amazon.com/Amazing2015-Infrared-Therapy-relief-3color-AAOCARE-k4/dp/B07WMNC4ZJ

Haven't ordered it yet, would rather get something you are interested in to test for the channel.