premier-Air2  A dirty filter can increase your energy costs and damage your equipment, causing  your unit to fail. Make sure  you change your filter every month or so to keep your furnace running efficiently and to keep  you indoor air cleaner.   Premier Air Colorado can help you keep your furnace or air conditioner working effeciently.  If you have any questions or need help call Premier Air at 303-993-9060 and check out our website at .