We spend 80% to 90% of our life indoors.
We breathe about 15, 000 litres of air a day.
Indoor air is on average between 3 and 5 times more polluted than outside.
Interior Air Quality
We breathe about 15, 000 litres of air a day. On average, indoor air is 3 to 5 times more polluted than outside, so indoor pollution poses an unquestionable hazard.
The air we breathe has various hazardous particles in suspension: microorganisms, viruses, volatile organic compounds, material particles (PM) and other toxics.
The airway is therefore an important source of disease contagion if we do not implement the necessary and effective solutions that protect human health and the viability of economic, educational, cultural and social activities.
The current strategies focus on reducing transmission by this medium, simultaneously to the rest (by surfaces, droplets greater than 10 micron and fecal-oral). These strategies are broken down into three sections: dilution (ventilation), retention (filtration) and inactivation of the virus (purification).
It is achieved by increasing the rate of outdoor air renewal by the user by reducing capacity; natural ventilation; installation of mechanical ventilation systems; avoiding air recirculation or inspecting heat recuperators.
It is a question of retaining the particles found in the air by means of filters both outside and inside the spaces. There are different types of filters depending on their function (catching particles or gases), the material from which they are made (inorganic, polymeric and natural fibers) and their operation (mechanical, electrostatic, active polarization, with UV-C rays…). It is common to combine several types of filters to increase the retention efficiency of different components.
Inactivation is achieved by implementing technologies that purify air outside the device. This type of measures is especially important in spaces where the use of a mask is an impediment to the activity, and / or physical demand activities (dining room, gym,….) and where a significant amount of particles are exhaled.
Several technologies are available: photocatalysis (PCO), bipolar ionization (BPI), ultraviolet (UV-C) radiation and generation of hydroxyl radicals taking with reagents such as limonene or hydrogen peroxide.