[PacoQuitos]

Hello,
Yes, it’s generally safe if you're using OD7+ glasses from a reputable brand like NoIR and the laser is enclosed. The glasses block almost all harmful blue light (455 nm), converting it to safer wavelengths (orange). The light you're seeing is much less powerful. The OD7+ rating means it reduces the laser intensity by a factor of 10 million.

Thank you for your answere @bravernoe
I wonder if the first protective glass convert all blue light to an orange one and that if this orange light is actually still powerfull (with no reduction, only conversion ?), it will pass throught all other 455nm filtering stuff with no problem and then damaging my eyes ?
I understand Orange is less powerfull, but with a 22w laser reflection, It could still harm me with these 3 layers of protection ?
Thanks !