Advice and recommendations about ventilation and Covid-19

Already in April 2020, REHVA (Federation of European Heating, Ventilation and Air Conditioning Association) came out with advice and recommendations about the use of ventilation in regard to the pandemic, Covid-19.
School ventilation

Already in April 2020, REHVA (Federation of European Heating, Ventilation and Air Conditioning Association) came out with advice and recommendations about the use of ventilation in regard to the pandemic, Covid-19. The recommendations have since been updated twice, with the last one on August 3rd, where the focus has been on how to re-open buildings in the safest way possible. This also affects how Airmaster ventilation units should be used.

With Airmaster ventilation units one can follow REHVAS advice and guidance in the best way by:

 

1. Increase ventilation so it runs for more hours than normal, and preferably with increased volume of air.

Your Airmaster units can be set up to start and stop after a schedule, and the air volume can be increased. Let the ventilation units start and stop some hours before and after the facility is being used or consider having the units on for 24-hours a day. With Airmaster Airlinq® Online, this can be simply set up through Airmaster’s own online web-portal.

2. Secure use of heat recovery units

Airmaster’s units use countercurrent heat exchangers of high quality, where air supply and exhaust are completely separated. The ventilation units also have a high-density class regarding internal leakage.

3. It can further be mentioned that the air is not recycled with Airmaster ventilation units.

Air supply and exhaust is completely separated in Airmaster’s units – fresh air comes in without touching the exhaust air at any time. Used air is neither transported around buildings, as the units are stand-alone units which only ventilates the room it has been installed in.

4. You can also consider changing the filter if it has been long since your last service

If it has been long since your ventilation unit received service, you should consider having this done. It is not necessary to get service for your unit beyond the normal recommendations, but blocked filters can limit the unit’s capacity and, therefore, reduce the amount of fresh air.

Aside from REHVA there has been many others coming with recommendations surrounding indoor climate in relation to the corona virus.

More and more scientists refer to the risk about the spread of infection through the air with so-called aerosols, which are microscopical particles which can hang in the air in a time-period. They exist everywhere and are light enough to soar in the air, similar to smoke, spit and mouth water. It has still not been proven that the corona virus can be transferred through the air, but there is evidence that other viruses can, which lead to some scientists promoting the cation-principle.

It is also a part of ECDC’s (European Centre for Disease Prevention and Control) recommendations from 22. July 2020, that ventilation should become a part of the preventive measures to reduce infection.

Transmission of SARS-CoV-2: Implications for infection prevention precautions

Ready for a breath of fresh air

At Airmaster, we are “decentral” through and through. We are unrivalled when it comes to creating the best indoor climate and optimal well-being because we take each room and its occupants into account – and because we constantly strive to improve on what we do.

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