It is only contracted by inhaling Legionella bacteria in tiny droplets of water (aerosols) deep into the lungs. Aerosols are small water droplets released by spraying, such as showers, fountains, humidifiers, air-conditioning systems, whirpools and cooling towers. Person-to-person spread of the disease has not been documented.
The unique PB International self-cleaning Legionella filters remove mechanically the Legionella bacteria, without chemicals. The PB-filter elements gives the best possible protection against infection from the Legionella bacteria.