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HEPA Filters in Hospitals & Healthcare Facilities


Clean air is a cornerstone of hospital safety, affecting everything from patient recovery to infection control, to the well-being of the staff. High-Efficiency Particulate Air (HEPA) filters are pivotal in maintaining pristine air quality. However, integrating these filters into hospital Heating, Ventilation, and Air Conditioning (HVAC) systems presents unique challenges.

Do Hospitals Use HEPA Filters?

Hospitals commonly use HEPA filters in their HVAC systems and in standalone air purifiers.

HEPA filters are capable of capturing at least 99.97% of particles as small as 0.3 microns, which includes many airborne pathogens.

They are an essential component in creating a sterile environment, particularly in areas requiring stringent infection control measures, such as operating rooms, intensive care units, and isolation rooms.

HEPA Filters: capturing airborne pathogens

In hospitals and other health facilities, airborne pathogens present a significant risk, particularly in areas with weak ventilation.

HEPA filters are a vital part of hospitals by capturing airborne pathogens such as bacteria, viruses, and mold spores. 

Their fine layer of fibers traps contaminants as air circulates through the filter, reducing the risk of spreading infectious diseases and protecting both patients and healthcare workers.

Specific Areas in Hospitals Where HEPA Filters Are Essential

The requirement for air filtration in a hospital is contingent upon factors such as the quality of ventilation, room dimensions, occupancy, and the nature of medical procedures performed. Here’s a detailed overview of air filtration recommendations in various hospital zones aimed at minimizing infection risks.

Filtration efficacy may differ depending on the specific purpose of the area. Certain spaces mandate multiple filtration stages.

Waiting Areas and Outpatient Care

Although waiting areas and outpatient care spaces are not categorized as priorities for infection control, they frequently serve as the first contact with individuals with undiagnosed illnesses.

Airborne particles from coughs or sneezes can potentially infect others in the vicinity. Thus, implementing effective air filtration in these areas functions as a frontline safeguard for both staff and other visitors.

Operating Rooms

The operating room is one of the most demanding areas for air quality in hospitals due to surgical procedures that often involve the exposure of organs or human tissue.

To maintain a contaminant-free environment and reduce the risk of infection, HEPA filters are essential in the operating room. The air filtration system is responsible for removing contaminants, ensuring clean air during surgery.


Contaminants in the air can include dust, allergens, bacteria, and viruses, which are especially hazardous to newborns and infants due to their vulnerable immune systems. HEPA filters help create a clean and sterile environment essential for protecting these infants.

Patient Rooms

A patient room can contain concentrated infectious pathogens, as various types of patients are treated in a confined space. A proper air filtration system with effective HEPA filters can significantly influence the speed at which contaminants are removed from the patient room.

The air quality in the room has an impact on staff, visitors, and patients themselves.


Pharmacies handle drugs, chemicals, and solvents that require a contaminant-free environment. In these settings, HEPA filters are crucial to ensure air purity.

They protect pharmacists and healthcare professionals from inhaling potentially harmful substances, ensuring the integrity of medications and compounds.

Air Filtration System Structure for Hospitals

The structure of an air filtration system in hospitals typically consists of:

Air Intake Systems: Flesh air is drawn into the system from the outside. Pre-filters are able to remove larger particles.

Distribution: Filtered and conditioned air is then distributed throughout the hospital area via a network of ducts.

Air Exhaust Systems: These systems can contain HEPA filters to clean air from the hospital, removing contaminants from the air and venting the air out of the space.

Air Handling Unit (AHU): If the space has a requirement on temperature and humidity,  this air handling unit will be a good help.

Choosing the Right HEPA Filters for Healthcare Facilities

Assessing Specific Needs: Evaluate the particular requirements of different areas within the healthcare facility, such as operating rooms, ICUs, and general patient care areas.

Understanding Ratings: Select HEPA filters based on efficiency ratings suitable for healthcare settings, typically those that meet or exceed H13 or H14 standards, capable of trapping 99.95% to 99.995% of particles.

Considering the Load: Estimate the particle load the filters will need to handle, including bacteria, viruses, and other contaminants, to determine the appropriate filter grade.

Consulting with Experts: An accurate assessment can save a considerable amount of budget by reducing excessive air filter efficiency waste and energy consumption.

Work with filtration professionals and infection control specialists to ensure the selected filters meet the necessary health and safety standards.

HEPA Filters for Hospitals

CleanLink recommends the following HEPA filters to meet different requirements of those areas.


Hospitals and other healthcare facilities maintain higher standards for air filtration. Clean air is crucial in ensuring a contaminant-free and healthy environment for staff, visitors, and patients.

By selecting appropriate HEPA filters, air filtration systems in hospitals and clinics can efficiently remove harmful particles from the air, thus reducing energy consumption and regular maintenance costs.

Contact the CleanLink expert team for more support on air filtration solutions.


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