How can window condensation in a leased condo be dried, if I'll be away for 3 weeks, without towels?
Turn on a fan to circulate the air which will remove some of the excess moisture by evaporation.
Change the HVAC filter. A dirty filter will impede air flow.
Turn on the HVAC. This not only cools/heats the room, but also removes humidity.
Get yourself a dehumidifier.