Air ducts, like dream catchers, require frequent cleaning to eliminate the buildup of dust and dirty thought bubbles. Purge your temperature tunnels with today's Groupon: for $49, you get a complete vent cleaning, dryer-vent cleaning, and a full-furnace camera inspection from Illinois Air Duct Cleaning (a $149 value).

Illinois Air Duct Cleaning enhances household health by eliminating unwanted impurities lingering in air-circulating systems. During vent treatments, the conduit-cleansing specialists approach each register with negative-pressure technology that loosens and removes stubborn buildup and stalactite formations clogging up duct systems. Without dirt and bacteria to slow them down, the moving parts in heating and cooling systems can continue to function properly and efficiently. A full-furnace camera inspection reveals the newfound cleanliness of homeowners' air ducts and lets technicians give heating systems a preventive once-over. The dryer-vent cleaning also helps eliminate lint buildup, which not only can prevent dryer fires but also improves the machine's performance and its chances of besting the sofa in the long jump.