<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><font color="#0432ff" class="">"While I'd love to have a pair of Bose Quiet Comfort 20…”</font><div class=""><br class=""></div><div class="">Just for what its worth, I am on my third set of the Bose QC20’s and could not live without them. They work incredibly well, but I don’t know if they qualify as hearing protection. As I understand it, they work by generating anti-noise: the opposite wave length of the noise coming in. While what you can hear is greatly diminished - they are awesome on airplanes and in hotels with noisy HVAC systems - I wonder if they actually prevent hearing damage. It would be nice to know if they do qualify, or if noise+anti-noise is still damaging to the ears, even if you can’t actually perceive it. Does anyone here know? </div><div class=""><div><br class=""></div><br class=""></div></body></html>