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Alisea News


Legionellosis risk at schools: how to prevent it?

Legionellosis often represents a not considered risk in biological risk evaluation of schools, but epidemics have been discovered in environments like schools, hotels and hospitals


Evidences of legionellosis in a Capannoli plant

Security measures has been immediate for the infected rooms. These measures have been activated by a major's decree to debilitate the dangerous bacterium


Alisea carries out remediation and sanitisation on every component of an aeraulic system, certifying the work carried out according to the law.

Every component in an aeraulic system has particular problems: here we can understand the specific need to act in a structured and differentiated way to sanitise every element:

1- Intake duct

The air intake duct is a space where a large amount of dust deposits which can be potentially dangerous for people. Periodical cleaning of these components is fundamental to guarantee health and safety.

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2- Collection tank for condensed water

This ATU component is a critical part of the system because poor hygiene creates perfect environmental conditions for the proliferation of various types of microorganisms.

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3- Humidification apparatus

The humidifier is a fine nebulisation system which regulates the hygrometric conditions of out flowing air. The nebulisation process increases the risk of transmission of Legionella occurring through the inhalation of the aerosol.

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4- Batteries

The thermal exchange batteries, in particular finned surfaces, are perfect terrain for the proliferation of various micro-organisms, particularly fungi. Remediation of these components is indispensable to guarantee safe and healthy air and optimal thermal exchange.

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5- Output ventilator

Poor maintenance of the output ventilator, besides increasing the risk of contamination, causes considerable worsening in the regular air flow.

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6- Aeraulic output duct

The large amount of dust which normally deposits in these components makes the outflow ducts a place where great attention should be dedicated during remediation of the systems.

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