Indoor Air Quality in the built environment

In addition to the use of traditional consolidated strategies for the improvement of indoor air quality, which are air renewal, filtration, and application of UV-C lamps for serpentine protection, it is essential to apply new active contamination control technologies, such as advanced oxidation processes by photo catalization, control actives and gases and microorganisms, as well as bipolar ionization, active in the control of particulates and aerosols.

Active technologies are the only means of directly intervening in the aerial transmission of infectious diseases.

“The safe use of the air conditioning system today is very worrying since the new coronavirus is transmitted by air. Aerosols remain in the air in droplets spreading millions of viruses that are dispersed in this environment. Therefore, the proper functioning of the air conditioning system depends on the good mixture of air, that is, the busier the air, the better. However, in terms of contamination this does not apply. The air filtration and renewal devices available in the air conditioning system are not always sufficient to contain viruses in air-conditioned environments. To ensure decontamination, it is recommended to increase the external air rate and degree of filtration and make use of equipment for disinfection, evidencing ultraviolet irradiation and hydro ionization photo”, highlights engineer Ricardo Cherem de Abreu, technical director of Dannenge International.

To improve indoor air quality, Dannenge International offers engineering solutions, from consulting to after-sales training and support, and through represented brands, it offers technologies applied in HVAC systems.

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