Which method is NOT a control for improving IAQ in commercial buildings?

Reducing cleaning frequency is not a method aimed at improving indoor air quality (IAQ) in commercial buildings. In fact, increased cleaning frequency is typically recommended because it helps to minimize the accumulation of dust, allergens, and other pollutants that can negatively impact air quality.

Advanced HVAC systems, regular maintenance, and increased ventilation rates are all effective strategies for enhancing IAQ. Advanced HVAC systems can better filter air and control humidity, thereby reducing the presence of contaminants. Regular maintenance ensures that HVAC systems are functioning properly, which is crucial for optimal air circulation and filtration. Increasing ventilation rates helps to dilute indoor air pollutants and brings in fresh air, which is beneficial for the overall air quality in a commercial space. Conversely, reducing cleaning frequency can lead to the opposite effect, resulting in poorer IAQ and potential health issues for occupants.