What must all cleaning methods for HVAC systems incorporate?

In HVAC systems, effective cleaning methods must incorporate vacuum collection devices operated continuously to ensure that contaminants, such as dust, debris, and mold spores, are effectively captured and removed from the environment. Continuous operation of these devices prevents the disturbing of settled particles and minimizes the risk of them becoming airborne during the cleaning process.

Using vacuum collection devices specifically designed for HVAC systems allows for the safe and efficient removal of harmful particulates, which is critical for maintaining good indoor air quality and system performance. This approach helps to prevent the reintroduction of contaminants into the airflow after they've been disturbed, thus promoting a cleaner and healthier environment.

In contrast, the other methods listed do not prioritize the collection and removal of pollutants in a manner that effectively supports the integrity of the HVAC system or indoor air quality. Manual cleaning without tools lacks the necessary efficiency and thoroughness, while wet mops and dry air blowers may not effectively capture airborne particles, potentially leading to an incomplete cleaning process.