Interview with the expert

Rupert Mack

What do viral infections have to do with air conditioning? 

These are infections that also spread via droplet infection. There is a risk that viruses are carried on particles through the air and the disease spreads. Therefore, optimal thermodynamic air treatment (cooling) is particularly important wherever many or sick people come together and the risk of spreading is correspondingly high. First of all, of course, these are hospitals and doctors' surgeries, but also all public buildings, sales and event rooms as well as office and industrial buildings. 

 Can air-conditioning technology protect against infection? 

Yes, it can, by filtering and killing viruses, germs and bacteria from the air. This limits or prevents their spread. To achieve this, the Vindur® Top secondary air cooling unit works with a four-stage safety concept. This includes an H14 HEPA filter, which filters particles out of the air, and UV lamps, which kill viruses, germs and bacteria in the HEPA filter. Inner sheets coated with silver ions contribute to the containment of microorganisms. After Vindur® Top has been switched off, a newly developed thermal disinfection system ensures that the risk factor of condensate as a breeding ground for viruses, germs and bacteria is reliably eliminated. 

 How does thermal disinfection work? 

Condensate can form in recirculating air cooling units as a result of cooling, from which a biofilm develops and thus an excellent breeding ground for bacteria, viruses and moulds. Thermal disinfection heats all relevant components of the cooling system sequentially over 10 minutes to approx. 70 °C, thus drying out the biofilm and reliably killing microorganisms and viruses thermally. The result: a hygienic room climate and thus excellent protection against infections.