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How can you reduce the spread of airborne pathogens in a healthcare facility?

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Airborne pathogens are microorganisms that can cause infections when they are inhaled or come into contact with mucous membranes. In a healthcare facility, where patients, staff, and visitors are exposed to various sources of pathogens, reducing the spread of airborne infections is crucial for preventing outbreaks and ensuring safety. As a facilities engineer, you can implement several measures to improve the indoor environmental quality and occupant health of your building. Here are some of the most effective ways to reduce the spread of airborne pathogens in a healthcare facility.

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Jaouad Zemmouri
Mohammad Shereef Ibrahim

General Manager at DEOS Middle East.
Dave Bohnert

Drug Discovery & Development MSc | Legal Tech Enthusiast | AI Act Compliance Specialist

1 Ventilation and filtration

Ventilation and filtration are key factors in the transmission of airborne pathogens. The supply and exhaust of fresh and stale air, as well as the removal of particles and contaminants from the air, can reduce the concentration and exposure of airborne pathogens. To optimize your ventilation and filtration system, follow the guidelines and standards of ASHRAE, CDC, and WHO. Best practices include increasing outdoor air supply and exhaust rates in high-risk areas, using HEPA filters or UVGI devices to remove or inactivate airborne pathogens, monitoring and controlling temperature, humidity, and pressure to prevent condensation or mold growth, and performing regular inspections, cleaning, and maintenance of components to ensure optimal performance and prevent biofilm formation.

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Jaouad Zemmouri
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Je suis d’accord pour la ventilation et la filtration à condition de gérer le flux dans le batiment pour éviter les endroits où l’air stagne qui va donc maintenir la pollution dans le local et apporter du risque. Le prix à payer est celui de l’énergie car plus le débit monte et plus la facture explose. Il y a la tentation de traiter l’air intérieur mais dans ce cas on ne doit pas créer une autre pollution comme les UV par exemple qui vont créer des radicaux libres dans l’air et qui seront très néfastes pour les usagers et surtout le personnel hospitalier. La filtration de l’air vicié ne doit pas ajouter d’autres produits dans l’air mais doit se limiter à retirer les particules fines de l’air.

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2 Air cleaning and disinfection

Reducing the spread of airborne pathogens in a healthcare facility can be achieved by using air cleaning and disinfection technologies. These technologies can be installed in the ventilation and filtration system or as standalone devices in specific rooms or areas. Ultraviolet germicidal irradiation (UVGI) utilizes short-wavelength ultraviolet light to damage the DNA or RNA of microorganisms and prevent them from reproducing. Photocatalytic oxidation (PCO) uses a catalyst, such as titanium dioxide, and ultraviolet light to generate reactive oxygen species that can oxidize organic compounds and microorganisms in the air. Ionization is another technology that uses electrically charged ions to attract and neutralize particles and microorganisms in the air, which can be combined with UVGI or PCO to enhance their effectiveness. UVGI, PCO, and Ionization can be used in various scenarios, such as laboratories, pharmacies, kitchens, waiting rooms, offices, or storage rooms.

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3 Occupant behavior and education

Reducing the spread of airborne pathogens in a healthcare facility is a complex and challenging task that requires a multidisciplinary and collaborative approach. As a facilities engineer, you can play an important role in improving the indoor environmental quality and occupant health of your building by applying three methods: ventilation and filtration, air cleaning and disinfection, and occupant behavior and education. To influence occupant behavior and education, you should provide clear information about sources, risks, and prevention of airborne infections; encourage the use of personal protective equipment; implement policies that reduce the potential for airborne transmission; and promote healthy habits that enhance the immune system. By doing so, you can help prevent and control airborne infections while protecting the wellbeing of your occupants.

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Dave Bohnert

Drug Discovery & Development MSc | Legal Tech Enthusiast | AI Act Compliance Specialist
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Un élément important à prendre en compte et sur lequel agir à moindre co?t est la suppression de l'utilisation des détergents à base d'ammonium quaternaire dans les établissements hospitaliers. Ces détergents sont utilisés pour supprimer les agents pathogènes mais paradoxalement ils peuvent induire des irritations respiratoires et même provoquer de l'asthme sévère.

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4 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Mohammad Shereef Ibrahim

General Manager at DEOS Middle East.
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To mitigate the spread of airborne pathogens in healthcare, a multifaceted approach is crucial. Adequate ventilation is paramount, ensuring a required flow of fresh air and utilizing efficient filters to trap contaminants. Regular assessment of fresh air intake and air quality is vital, with advanced Building Management Systems (BMS) for effective control and monitoring. Implementing data analytics on air quality data for informed, data-driven decisions, enhancing the overall response to potential threats. This comprehensive strategy, incorporating ventilation management, filtration systems, and advanced technologies, plays a pivotal role in creating a safer healthcare environment by minimizing the risk of airborne pathogen transmission.

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How can you reduce the spread of airborne pathogens in a healthcare facility?

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1 Ventilation and filtration

2 Air cleaning and disinfection

3 Occupant behavior and education

4 Here’s what else to consider

Facilities Engineering

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How can you reduce the spread of airborne pathogens in a healthcare facility?

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1 Ventilation and filtration

2 Air cleaning and disinfection

3 Occupant behavior and education

4 Here’s what else to consider

Facilities Engineering

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