I had to select... what is a humidity pack? Because their was no option for "neither" as I have never understood the need for them. I have some weed in jars that have been in there for nearly 3 years and the RH is still at where I set em when I stored them! Seriously, why? Yeah, I get that traditional cigar humidors breathe, so that's why they were made, but jars don't, so it makes no sense to me!