Residential HVAC systems require maintenance and repairs on a regular basis in order to achieve their optimal performance. While some HVAC maintenance procedures should be performed by a company specializing in home HVAC systems, other repairs can be easily performed by the homeowner. One of the most important HVAC services that you can perform at home is a furnace filter change. There are a number of great reasons to change your furnace filter. When you install a new furnace filter, you will improve the efficiency of your HVAC system. In addition, a clean furnace filter will help you improve your indoor air quality. If you have any more questions about the steps of HVAC maintenance, be sure to work with a company offering highly rated Portland HVAC services. By scheduling services with a trained technician, you can ensure that your HVAC system is in great working shape throughout the seasons.