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  • Writer's picturePedro Duarte

Legionella: What It Is and How to Prevent It


Legionella is a genus of bacteria that can cause Legionnaires' disease, a severe form of pneumonia.The bacteria are found in water, and they can grow in warm water systems, such as hot water tanks, cooling towers, and spas.Legionnaires' disease is a serious illness that can be fatal, but it can be prevented by taking steps to keep water systems clean and free of Legionella.


Legionella bacteria are found in natural water sources, such as rivers and lakes.They can also be found in man-made water systems, such as hot water tanks, cooling towers, and spas.The bacteria thrive in warm water, and they can grow in water that is between 77°F and 108°F.


Legionella bacteria are spread through the air.When water that contains Legionella bacteria is sprayed into the air, the bacteria can be inhaled.People who inhale Legionella bacteria can develop Legionnaires' disease.


Legionnaires' disease is a severe form of pneumonia. The symptoms of Legionnaires' disease include fever, chills, cough, shortness of breath, muscle aches, and headaches. Legionnaires' disease can be fatal, but it can be treated with antibiotics.


There are a number of steps that can be taken to prevent Legionnaires' disease.These steps include:

  • Keeping hot water tanks at 120°F or higher

  • Cleaning and disinfecting cooling towers and spas regularly

  • Ensuring that water systems are properly maintained

  • Educating people about Legionnaires' disease


Legionella filtration is a process that removes Legionella bacteria from water. There are a number of different types of Legionella filtration systems available, including:

  • Ultraviolet light systems

  • Chemical disinfection systems

  • Filtration systems

Ultraviolet light systems use ultraviolet light to kill Legionella bacteria.



Chemical disinfection systems use chemicals to kill Legionella bacteria. Filtration systems use filters to remove Legionella bacteria from water.


Legionella filtration is an important part of preventing Legionnaires' disease. By using a Legionella filtration system, you can help to keep your water safe and free of Legionella bacteria.


Here are some tips on Legionella filtration for your website:


Ultraviolet light systems are a good option for small water systems, such as hot water tanks. Chemical disinfection systems are a good option for large water systems, such as cooling towers and spas. Filtration systems are a good option for both small and large water systems.


When choosing a Legionella filtration system, it is important to consider the size of your water system, the type of water system, your budget and last but not least - your risk assessment results/suggestions.

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