Silica - Part 2 How this could be considered usefull for me, i'm a musicsian??? wtf are talking about?... Well, if you have more than 1 year playing an instrument and you know the basic cares of that instruments maybe you're conscious about keeping out the humidity from your instrument and the rest of the gear. I'll show you how t approach this small "trash bag" to protect your rig. During spring and summer the air is charged with a lot of humidity, but if you live on a equatorial zone or just between the tropics this will help you the entire year; is very easy, just put a bag of silica on every pocket of your cases and one inside with your equipment (look at the examples i'm posting).