About Us At Harrington Air we strive to provide professional design and quality NATE Certified installation. We listen to you. We learn about your needs and desires and sell you what you’re looking for. NO MORE - no less. We will discuss your options and any necessary changes or modifications necessary to achieve your goals so there are no surprises. We can design an efficient system for any home at an affordable cost. For those who want a little more we have air filtration, high end systems, and other optional amenities. We know that this is a big decision for most people and we want you to feel good about your decision to call us instead of the other guys. Call now for more information on the Mitsubishi Slim Split-ductless! (360) 225-8123