As an HVAC company, we know firsthand the importance of maintaining good indoor air quality. Poor indoor air quality can lead to a variety of health problems such as headaches, dizziness, fatigue, and even respiratory issues. One of the first signs of poor indoor air quality is the presence of unpleasant odors which can be caused by mold, dust, or pollen. Another sign is excessive dust accumulation which can cause respiratory irritation. Lastly, poor indoor air quality can also result in increased allergies and asthma symptoms. If you are experiencing any of these signs, it is important to call an HVAC professional to ensure that your indoor air quality is not causing harm to your health or the health of your loved ones.