RACA journal January 2021 | Page 70

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Contributors
of airborne viruses by manipulating the positive and negative ions that form when air flows through the system . When charged , these atoms attach to substances such as bacteria and mould , and neutralise the threat posed by unwanted intruders in the environment . This prevents the dispersal of these germs and pathogens within the airflow system .
HOW DO HOSPITALS KEEP THE AIR CLEAN ? So , what do hospitals do to keep the air safe for patients and
staff ? Of course , they take stringent precautions when it comes to wearing masks and sanitisation , but they also pay attention to the air in the building . With Covid-19 to consider , many hospitals have added extra air filtration systems or units in their wards to mitigate the spread of the virus . These systems need to meet strict hygiene and maintenance requirements in order to keep patients and staff safe and healthy .
An example of a hospital adapting to the sudden influx of Covid-19 cases is Clairwood Hospital in Durban . To deal with the cases , they needed to convert their general wards into isolation
and quarantine wards . They used a hybrid package solution from LG that utilises optimum filtration levels to provide air clean enough for their ICU .
Businesses can follow the example set by hospitals when it comes to keeping the air clean . State-of-the-art VRF Multi V5 units that have been equipped with temperature and humidity sensors enable precise monitoring and control . Units equipped with LG ’ s communication module can be integrated with all types of DX-AHUs to either discharge air or return air control .
ENERGY CONCERNS Of course , one should always consider energy efficiency when using HVAC systems . Smart inverter technology allows for a wide range of functions , while actually reducing heating and cooling costs . Always look for an air conditioner that features this technology to keep costs low .
These types of air conditioners maintain indoor temperatures by using the minimum breeze needed to maintain
the desired temperature . This guarantees more efficient operation , especially when compared to the more commonly used constant speed air conditioners that switch on and off to maintain the desired temperature .
As we move into spring , it is important to still be aware of the ongoing pandemic . Businesses can help keep their employees safe with something as simple as an air handling system , and a reputable air conditioner expert will be able to advise on which one will meet their needs . Public spaces and buildings need a unique approach to air solutions , as there is no blanket approach to maintaining safe , breathable air quality . RACA

2022

1 - 3 JUNE 2022

GALLAGHER , CONVENTION CENTRE , JHB
THE LARGEST HEATING , ENERGY , VENTILATION , AIR CONDITIONING & REFRIGERATION EXHIBITION IN AFRICA
Showcasing the crucial role played by the HEVAC & R industry and the rapidly developing technology in eco-friendly efficiency .

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RACA Journal I January 2021

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