As we transition from warmer to cooler weather, HVAC systems shift from cooling to heating. This seasonal transition can impact indoor air quality (IAQ), bringing challenges like dust accumulation, mould growth, and poor ventilation. To maintain a healthy and comfortable indoor environment, property managers and facility owners need to be proactive in preparing their buildings for this shift.
In this guide, we’ll walk through the essential steps to improve IAQ during seasonal HVAC transitions, ensuring a smooth, safe switch from A/C to heat.
- Identify Common Indoor Pollutants During Seasonal Transitions
When switching to heating, HVAC systems can release accumulated dust, allergens, and VOCs (Volatile Organic Compounds) that may have built up during cooling season. These pollutants can reduce IAQ and contribute to respiratory discomfort.
Solution: Conduct a professional IAQ assessment to identify pollutants. Knowing what’s in your air allows you to take targeted action to improve air quality.
- Clean and Replace HVAC Filters for Optimal IAQ
Dirty or clogged filters restrict airflow, reduce HVAC efficiency, and release trapped allergens and pollutants into the air. Replacing filters during seasonal changes is essential for maintaining healthy IAQ.
Solution: Schedule regular filter replacements, especially when switching to heating. Consider HEPA filters, which trap smaller particles and allergens, for added protection.
- Address Humidity Issues to Prevent Mould Growth
As the cooler months bring drier air, maintaining balanced indoor humidity becomes crucial. Low humidity can increase dust levels, while any trapped moisture from summer months can promote mould growth.
Solution: Use dehumidifiers or humidifiers to keep humidity between 30-50%. Regular IAQ assessments can also help detect hidden mould early on.
- Ensure Proper Ventilation for Fresh Air Circulation
Buildings are often sealed more tightly during the heating season to retain warmth, which can reduce fresh air intake and increase indoor pollutant levels.
Solution: Optimize ventilation systems to ensure they bring in adequate fresh air. An IAQ assessment can pinpoint areas where ventilation is lacking, helping improve air circulation.
- Monitor and Control VOCs from Seasonal Indoor Sources
The use of certain products (e.g., cleaners, paint) increases in cooler months, releasing VOCs that can compromise air quality if ventilation is inadequate.
Solution: Conduct IAQ testing for VOC levels and reduce VOC sources by using eco-friendly, low-VOC products. Improve ventilation in areas where VOC levels are higher.
Conclusion: Proactive IAQ Management for Seasonal HVAC Transitions
A smooth transition from A/C to heating requires proactive IAQ management, from professional assessments to routine HVAC maintenance. By addressing IAQ issues early, you can keep occupants comfortable and healthy all winter long.
Ready to improve your building’s IAQ? Schedule your seasonal IAQ assessment with T. Harris Environmental Management Inc. today to ensure a safe and comfortable environment.