I got a measured value of 20.96mW at 441.40nm through the original 445nm LaserShades (with the Arctic at maximum), and 42.90µW (all of it was fluorescence of the lenses themselves) through the newer model 445nm LaserShades -- also with the Arctic at maximum output.
So while the older version (which most users have) offer ***SOME*** protection at ~441nm (and as we all know "some" is definitely better than "none"); the newer version of 445nm LaserShades (with noticeably darker lenses) offer 100% protection at the designed wavelength (in this case, the laser they were irradiated with measured at 442.00nm)-- they even offer adequate protection from 532nm laser radiation.