There are a lot of benefits that come hand-in-hand with having a central air cleaner installed. Better health, cleaner air and a more efficient HVAC system are just a few of these benefits. The efficiency and health standards of these units can be enough to sell most people on their importance. Whether you're having a central air cleaner installed or repaired, you'll need to find a contractor who is qualified to work as an HVAC technician. Some central air cleaning units are actually integrated with your HVAC system. If a contractor who doesn't understand HVAC systems tries to fix it, the results can be bad for you and your system. You should also be sure that the contractor has experience working on your specific type of HVAC system. For example, find someone who has experience working with heat pumps if you tether your air cleaning system to a heat pump.