The weather in Phoenix, Arizona, fluctuates greatly. Most people are aware of the especially hot summers. The temperatures soars into the triple digits for months at a time. The season is long, dry and especially hot. While the winters tend to be much shorter, we need to rely on a heating system for several months. The temperature tends to drop into the low forties. Because we switch from air conditioning to heating without much break in-between, energy bills are a concern. I’ve made an effort to prevent conditioned air from leaking out and to stop outside air from coming in. I’ve sealed around windows and doors, invested into attic insulation and make sure to have the ductwork inspected and tested every couple of years. My proactive measures have helped to reduce monthly utility bills. Unfortunately, I’ve also significantly lessened natural ventilation. When my house in Phoenix started feeling overly dry and dusty, I initially blamed the heating system. I hired a local HVAC contractor to provide a thorough cleaning and tuning. He told me that the problems with air quality were due to the absence of fresh air. The same stale air was getting circulated throughout the space day after day. Contaminants such as dust, dander and VOCs were becoming trapped indoors. He suggested that I add a ventilation system. The ventilator works in partnership with the furnace, air conditioner and ductwork. It runs year around, makes very little noise and requires only annual upkeep. The system works to introduce fresh, clean air into the home and pull out the dirty, stale air. I’ve been pleasantly surprised by the improvement. The living space doesn’t need to be vacuumed or dusted as frequently. My family has suffered fewer illnesses.