I agree with that. I also think its a smart idea to open the lid once every week or so (assuming they are just being stored and not smoked from)Plastic is permeable. That's the science. Glad it's permeable as well, just several magnitudes less than plastic. By the way, the primary issue I see is using boveda packs for long term humidity. Humidors aren't air tight, not even close. You don't want cigar storage in a perfectly air tight container, there's needs to be an exchange of atmospheres or the cigars will likely develop more.