Hi Pamela,
Sorry if this reply seems too simplistic but I think that your problem 
could be solved with ventilation.  Getting the air moving should help.  
Can you crack open a window or door and move some air with a fan?  Also, 
there should be a switch or lever on your HVAC wall unit that allows you 
to vent in outside air rather than recirculating the air inside the 
building.  Hope this helps.
Sincerely,
David Ryan
Registrar
Colorado Springs Pioneers Museum
www.cspm.org

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