Modern homes are constructed to be airtight, lowering your heating and cooling bills as fewer drafts are expected. However, an airtight home can be hazardous to your health and safety. Properly ventilating your home with Fantech and Panasonic exhaust fans can help eliminate foul odors, prevent excess moisture which causes mold and mildew, and eliminate harmful chemicals that build up in the home as it ages. Many bath exhaust fans come with detachable adapters for easy installation. Panasonic bathroom exhaust fans have a backdraft damper built into the fan and securely locked duct ends. Specific Panasonic exhaust fan models have a double-hanger bar system allowing for ideal positioning. Bathroom exhaust fans from Panasonic are ENERGY STAR qualified.