Have you ever wondered why your house doesn’t feel as fresh in the winter as it does the rest of the year? That is because indoor air quality (IAQ) can worsen in the winter because our homes are sealed up to conserve heat. This traps pollutants like dust, mold, and volatile organic compounds (VOCs) inside. It is important for us to be aware of IAQ, because ignoring it can lead to health issues like headaches, dizziness, and eye, nose, and throat irritation. It can also aggravate symptoms of existing conditions like asthma.