[Michlib-l] Stale air

We would like to tap into your experience. In this very busy winter season, we have found the library atmosphere gets a bit musty, stale, stinky, etc. We do have ceiling fans, but we work in an historic building without an HVAC system so there are restrictions as to what we can do. Have any of you found a solution that does not involve air fresheners? Thanks for your help. Debby Sears Jackson District Library