Listeria can spread through various means, but one of the less obvious methods is through air circulation in your home. Contaminated food particles can get lodged in your HVAC system, which, if not properly maintained, can circulate bacteria throughout your living spaces.
Some older air-conditioners have condensation pans where water just sits. Listeria is one notorious organism that loves these cold, damp, dark environments.
The bacterium Legionella pneumophila is responsible for most cases of Legionnaires' disease. Outdoors, legionella bacteria survive in soil and water, but rarely cause infections. However, legionella bacteria can multiply in water systems made by humans, such as air conditioners.
Legionnaires' disease is a lung infection you can get from inhaling droplets of water from things like air conditioning or hot tubs. It's uncommon but it can be very serious.
Cold air can dehydrate your nostrils, throat, and other parts of your body that fight off infections, increasing your risk of an illness. However, cold weather alone cannot make you sick. If you have viruses or particulates in the air, your AC may circulate them, and you can breathe them in.
Cooler temperatures at night can cause our immune system to slow down. This can make you more susceptible to conditions like common cold or a dry cough. Or else, you might wake up with a sore throat. If the AC unit is not clean, it will circulate germs and other airborne contaminants like dust mites, pet dander, etc.
Dry eyes, lethargy, dehydration, dry or itchy skin, headaches, respiratory issues, allergies and asthma, noise pollution, infectious diseases, and indoor pollutants are among the common health concerns associated with prolonged exposure to air conditioning.
Legionnaires' disease, the pneumonic form, has an incubation period of 2 to 10 days (but up to 16 days has been recorded in some outbreaks). Initially, symptoms are fever, loss of appetite, headache, malaise and lethargy. Some patients may also have muscle pain, diarrhoea and confusion.
Devices that aren't a source of infection
Home and car air-conditioning units don't use water to cool the air, so they aren't a risk for Legionella growth.
Can an air conditioner cause a sore throat? Yes, it can. Air conditioners remove humidity from the air, which can leave your throat feeling dry and sore, especially first thing in the morning. The AC isn't the only factor, of course, but fixing some common problems can resolve your sore throat woes.
It is advisable to use a humidifier alongside your home conditioner if you experience any air conditioning sickness symptoms. Also, drink a lot of water during the day to reduce this effect.
Legionnaires' disease is a serious type of pneumonia caused by Legionella bacteria. Certain people are at increased risk for this infection, but it's treatable with antibiotics. People can get Legionnaires' disease by breathing in mist containing Legionella bacteria.
Overview. Listeria infection is a foodborne bacterial illness that can be very serious for pregnant women, people older than 65 and people with weakened immune systems. It's most commonly caused by eating improperly processed deli meats and unpasteurized milk products.
Listeriosis is a foodborne illness caused by the bacteria L. monocytogenes. Symptoms include fever, chills, and headache.
It is widely assumed that Listeria monocytogenes can be transmitted to processed foods by airborne transmission.
Poorly maintained air-conditioning systems can cause respiratory tract infections, such as the common cold, flu, tonsillitis, coughs, and everything in between. Dirty filters are the most common culprits. Filters in an air-con system are there to remove bacteria and other contaminants.
Believe it or not, your AC can make you sick. Air conditioning sickness isn't typically a severe or dangerous condition for most people. A well-maintained air conditioner and filter are more likely to improve air quality in your home or business than worsen it.
But cool air may not be the only thing people are breathing—the bacteria that causes Legionnaires' disease (Legionella pneumophila) often grows in air conditioners, as well as hot tubs, hot water tanks, large plumbing systems, and decorative fountains.
The most effective way to prevent excessive Legionella growth in the water of HVAC evaporative cooling towers is proper maintenance of the water coolant systems, especially during spring and summer. This includes testing on a regular basis of the cooling tower water, and the use of disinfectants.
Legionnaires' disease can be fatal, so it is important to get prompt medical attention. Your doctor may determine that you have contracted a less severe version of the same disease, called Pontiac fever. This milder condition will clear up on its own without treatment and cause no lingering problems.
Legionella Control Internationals innovative rapid legionella testing kit, LegionellaFast uses the latest “rapid-test” technology to detect Legionella bacteria in water. It is a quick and easy to use DIY tester that will deliver an accurate, straightforward YES::NO test result on-site in only 25 minutes.
Affects Indoor Air
If you work in an air-conditioned building with poor ventilation, it can raise your risk of “sick building syndrome.” Symptoms include headaches, dry cough, dizziness and nausea, trouble concentrating, fatigue, and sensitivity to odors.
If any of the dirt, bacteria, dust, and other particulate matter that's hiding in your vents gets into your lungs, it can cause some serious infections and sleep issues. Sleeping with the AC on can also cause some physical issues, including dehydration.
Dries everything: Dry air translates to dry skin, itchy eyes, and irritated mucous membranes. Weaker Defenses: Constant cold exposure might weaken your immune system, making you more prone to catching a cold. Breathing Issues: Poorly maintained AC units can harbour mold and allergens, triggering respiratory problems.