I use ear plugs, (any type will do). On top of which I use heavy ear muffs too, (so I get double protection). And as an additional safety, I use...
You know I asked someone in authority about this. Why did everyone say that it's not our job? Answer I got is this: KPT (Karachi Port Trust...
@JellyJela Here in this thread you'll find useful information that I've collected about growing plants under artificial lights.
