Applications: Healthcare

These air sanitizers are recommended for health facilities, pharmacies, para pharmacies and for all those environments requiring the treatment of medium-large air volume.

They meet the needs of maintenance of a good air quality. It can be installed quickly and easily. The airflow passes through the filtering body of the device cleaning the air through the photocatalysis process and do not use chemical substances, do not produce ozone or any other poison gas. Inside it, a “KtV” filter is applied, through which the airflow goes once inhaled from the environment, the air goes then back out after the treatment: by continuing in this operation the air is constantly intaken, sanitized and returned to the environment.

In these buildings and spaces it is useful to promote processes seeking at acquiring attitudes and measures for health prevention. 

Moreover, it should be stressed out that viruses are one of the most common cause of infectious diseases transmitted in indoor environments, mainly because of their high infectiousness characteristic and their environmental resistance.

In the “ISS Report COVID-19 n. 5/2020” it is expressly stated that “concerning sanitization, in respect to the regulations in force, is meant the complex of procedures and operations of cleaning/disinfection and the maintenance of a good air quality”.

The development of a new photocatalyst tungsten trioxide based (WO₃), significantly incremented the photocatalysis effectiveness and solved the problem of the UV light employment. When exposed to visible light, the WO₃ absorbs and converts the light energy into electron and electron-holes. WO₃ reacts with water (air humidity) to produce hydroxyl radicals (OH-) and with oxygen to produce superoxide anions (O₂-).

Billions of these high oxidant species are created in billionths of a second and work to decompose matter at molecular level. The result is an effective decomposition of the polluting organic and inorganic substances (comparable to all fine particles PM2.5-PM10), of microbes, viruses, nitrogen oxides, aromatic polycondensates, sulphur dioxide, carbon monoxide, formaldehyde, methanol, ethanol, benzene, ethylbenzene, nitrogen monoxide and dioxide, etc.

The strong oxidative effect permits to use the tungsten trioxide based photocatalyst as photocatalytic disinfectant.

Although several research studied the photocatalytic inactivation of bacteria, only a few tackle the virus inactivation.