Efficient appliances and construction materials will be sold tax-free this weekend in Georgia. Friday through Sunday, items labeled Energy Star and WaterSense will be exempt if they are $1,500 or less. Items that may qualify include air conditioners, ceiling fans, clothes washers, dehumidifiers, dishwashers, doors, fluorescent light bulbs, refrigerators, windows, bathroom sink faucets and faucet accessories, toilets, urinals, showerheads and irrigation controllers.