I use these normally. http://www.howardleight.com/earplugs/laser-lite I am surprised some datacenters don't have a requirement for ear protection when entering their facilitiy. Most large construction sites I have been to required me to have ear plugs at least in a pocket and I have been to a few factories that required them on at all times. Many times these sites are quieter than the usual DC. -----Original Message----- From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Nick Hilliard Sent: Wednesday, September 23, 2015 3:34 AM To: nanog@nanog.org Subject: Ear protection What are people using for ear protection for datacenters these days? I'm down to my last couple of corded 3M 1110: http://www.shop3m.com/3m-corded-earplugs-hearing-conservation-1110.html These work reasonably well in practice, with a rated nominal noise reduction rate of 29dB. Some people find them uncomfortable, but they work well for me. There are other ear plugs with rated NRR of up to 32-33dB. Anyone have any opinions on what brands work well for them? Nick