Cleaning air conditioning systems is not limited to removing visible dust and debris. To ensure a truly healthy environment, it is essential to conduct analytical sampling to check for bacteria, mold and other potentially harmful particles. But how are these samplings performed? Let’s look at the process together, following the guidelines established by AIISA (Italian Association of Aeraulic Systems Hygienists).
1. Videoispezione preliminare
First, a video inspection is performed inside the air ducts and systems. This step makes it possible to visually identify the accumulation of dust and debris, as well as to check the general condition of the ducts. Based on this preliminary examination, a decision is made where to perform analytical sampling.
2. Dust and particulate sampling
One of the first tests is to collect samples of dust and particulate matter present inside ducts and on air conditioning systems. Using a vacuum device, dust is taken from specific surfaces of the ducts. These samples are then analyzed for the presence of contaminants.
3. Microbiological sampling
To assess the presence of bacteria, molds and yeasts, microbiological sampling is performed. There are several techniques for this step:
– Swab on surfaces: Sterile swabs are used to collect samples from the inner surfaces of implants.
– Sedimentation plates: Plates containing culture media are exposed inside the ducts for a predetermined period of time, allowing airborne microorganisms to be collected.
– Air sampling: A special device is used to aspirate the air in the ducts and measure the concentration of biological agents.
4. Laboratory analysis
The collected samples are sent to specialized laboratories for analysis. Here the amount and type of contaminants present, such as bacteria, yeast, mold or other particles, are determined. The analyses determine whether contamination levels are within the safety parameters set by regulations.
5. Pre and post remediation comparison
Once the cleaning and sanitization of the facilities is completed, new analytical sampling is conducted to compare the pre- and post-intervention results. This comparison is essential to ensure that the cleanup was successful and that the air has returned to safe levels.
6. Final certification
At the end of the process, AirChannel issues a certification of successful cleaning and sanitization, attesting to the compliance of the intervention with AIISA protocols. This certification ensures that the facility has been cleaned and sanitized according to the strictest industry guidelines.
