In my public video on decoration lasers, I did not test them for infrared leakage.
They do all contain green DPSS lasers, but I expect them to have infrared filters build in. Their price and overall good design taken into consideration.
The designers build thermal sensoring into them and even thought of heating the DPSS laser for for it to work in the cold. And also the fact that I bought them all in well-established stores in Denmark - not from shady eBayers.
But I may be naive. Let's test them.
Next public video will go live on leap day Saturday, February 29th. It will feature a small but powerful laser with no infrared leakage - just a lot of visible laser light from three direct diode lasers.