A HIDDEN KINGDOM IN AIR CONDITIONING DUCTS
- INPAL
- 2 days ago
- 3 min read

PATHOGENIC MICROORGANISMS IN VENTILATION SYSTEMS
Imagine air conditioning ducts as a dark, damp labyrinth, where dust collects in forgotten corners and condensation creates a perfect breeding ground. The stagnant air and lack of sunlight turn this environment into a paradise for the invisible. Here, between fans and saturated filters, bacteria, fungi and viruses weave their colonies like a microbial web, multiplying in silence. Invisible to the human eye but omnipresent in every breath of air, these invaders take advantage of every carelessness to infiltrate our spaces, turning the relief of freshness into a potential health threat.
LEGIONELLA PNEUMOPHILA: the most feared, it lurks in cooling towers and poorly maintained systems. When contaminated steam is released, this bacterium travels like a stealthy killer, capable of triggering legionellosis, a serious pneumonia that attacks the most vulnerable.
ASPERGILLUS AND PENICILLIUM: opportunistic fungi, floating in spores that adhere to damp surfaces. For those with allergies or immunodeficiencies, their presence can develop into chronic respiratory infections or even fatal fungal invasions.
STAPHYLOCOCCUS AND PSEUDOMONAS: resistant bacteria colonize dirty filters, waiting for their chance to invade lungs or open wounds, especially in hospitals where air conditioning is a silent vector of nosocomial infections.


A hidden kingdom in air conditioning ducts.
REMOVAL PROCESS WITH UV-C LIGHT
Nucleic acid absorbs radiation from 230nm to 290nm length, this damages the genetic material and the DNA chain breaks (Scrambled).
The organism is no longer viable, cannot reproduce or dies and is unable to infect. The resistance of pathogens to ultraviolet radiation is technically zero.
At INPAL we have customized solutions to eliminate microorganisms in industrial and residential air conditioning systems or in systems that require specialized air.
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