Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls, floors, or ceilings covered by grills) carry cooled air from the air conditioner to the home. This cooled air becomes warmer as it circulates through the home; then it flows back to the central air conditioner through return ducts and registers. Air conditioners help to dehumidify the incoming air, but in extremely humid climates or

As you may know EDGE HVAC is a huge fan of the RFG air purification products so it was a no-brainer to select the Noble Air purification system as this weeks giveaway. Here is how to enter: 1. Like and Share this post on Facebook or retweet it on Twitter. 2. Leave a comment on why you need this car air purifier. Rules: This giveaway is open to US Residents age 18 or older. Winners will be selected via random draw, and will be notified by e-mail or messenger. You must like, s