A HIDDEN DANGER IN AIR CONDITIONING SYSTEMS (FUNGI AND THEIR EFFECTS ON HEALTH). FUNGUS IN AIR CONDITIONING.
- INPAL
- Mar 23
- 3 min read
Updated: Mar 27
Air conditioning systems are a solution to provide heat and maintain a comfortable environment in homes, offices, industries and public spaces. The problem comes when they are not properly maintained, they become a focus of biological contamination, especially by the proliferation of fungi. These microorganisms not only affect air quality, but can also trigger allergies, asthma and opportunistic diseases in susceptible people.
HOW DOES FUNGUS FORM IN AIR CONDITIONING SYSTEMS?
Fungi find in air conditioning systems a favorable environment for their growth. Humidity, dust and organic matter that accumulates in filters and ducts provide ideal conditions for their development. When the system is in operation, fungal spores can be dispersed through the air and inhaled by people. In HVAC systems they are found on coils and in the wet filter media.
TYPES OF FUNGI
ASPERGILLUS: This genus of fungi is one of the most frequent in air conditioning systems. It can cause aspergillosis, a disease that mainly affects people with weakened immune systems. Symptoms include shortness of breath, cough and fever..
CLADOSPORIUM: This fungus is known to be a common allergen. It can cause allergic reactions such as sneezing, nasal congestion and itchy eyes. In people with asthma, exposure to Cladosporium may aggravate symptoms.
PENICILLIUM: Although some Penicillium species are beneficial (such as those used in the production of antibiotics), others can cause health problems. Inhalation of their spores can trigger allergies and respiratory diseases.
ALTERNARIA: This fungus is another common allergen found in air conditioning systems. It can cause allergic rhinitis and asthma exacerbations, especially in children and sensitive individuals.
STACHYBOTRYS CHARTARUM (BLACK MOLD): Known as “toxic mold,” this fungus produces mycotoxins that can be hazardous to health. Prolonged exposure can cause respiratory problems, fatigue and headaches.
EFFECTS ON HEALTH
The presence of fungi in air conditioning systems can have serious health consequences, especially in people with weakened immune systems, children, the elderly and those suffering from chronic respiratory diseases. Some of the most common effects are:
Allergies: Mushroom spores can trigger allergic reactions, such as sneezing, nasal congestion, itchy eyes and rashes.
Asthma: Inhalation of spores can aggravate asthma symptoms, leading to more frequent attacks. y severos.
Opportunistic diseases: In people with compromised immune systems, such as HIV/AIDS patients or those undergoing chemotherapy treatments, fungi can cause serious infections, such as fungal pneumonias.
Sick building syndrome: Fungal air pollution can contribute to this syndrome, which is characterized by symptoms such as headache, fatigue, eye and throat irritation, and difficulty concentrating.
PREVENTION AND MAINTENANCE
To prevent the proliferation of fungus in air conditioning systems, regular maintenance is essential.
Filter cleaning: Filters should be cleaned or replaced periodically to prevent dust and moisture buildup.
Humidity control: Maintaining humidity levels below 60% reduces the risk of fungal growth.
Inspection of ducts: Ducts should be inspected and cleaned regularly to remove any accumulation of organic matter.
Adequate ventilation: Ensuring that spaces are well ventilated helps reduce the concentration of spores in the air.
Prevention and proper maintenance ensures clean and safe indoor air. Don't underestimate the importance of taking care of your system, your health and the health of others.
At INPAL® we have customized solutions to combat microorganisms such as fungus. Applying UVC light emitters in air conditioning equipment, eliminating it with ultraviolet radiation.
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