Using HEPA filtration to reduce COVID-19 transmission in hospital settings

Baldachin-Study: Ceiling HEPA-filtration to Prevent Nosocomial Transmission of COVID-19 in Open-space Multiple Bed Patient Areas

Not applicable Interventional Insel Gruppe AG, University Hospital Bern · NCT05648097

This study is testing if using a special air filter in hospital rooms can help reduce the spread of COVID-19 among patients.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment104 (estimated)
Ages18 Years to 120 Years
SexAll
SponsorInsel Gruppe AG, University Hospital Bern Academic / other
Locations1 site (Bern, Canton Of Bern)
Trial IDNCT05648097 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a mobile high efficiency particulate air (HEPA) filtration unit, called 'Baldachin', in preventing the transmission of SARS-CoV-2 among patients in an open-space Intermediate Care Unit. The intervention will be implemented in areas where patients with confirmed COVID-19 are housed alongside other patients, aiming to reduce the risk of nosocomial infections. The study will compare infection rates between rooms equipped with the Baldachin filtration system and those without it, assessing the proportion of new infections among exposed patients after four days. This approach seeks to enhance existing infection control measures in hospital settings.

Who should consider this trial

Good fit: Ideal candidates for this study are adult inpatients in open-space Intermediate Care Units with confirmed SARS-CoV-2 infection.

Not a fit: Patients who are pregnant or unable to provide informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this intervention could significantly reduce the risk of COVID-19 transmission in hospital environments, protecting vulnerable patients.

How similar studies have performed: While the use of HEPA filtration in healthcare settings is established, this specific application for COVID-19 transmission prevention is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult inpatients of included open-space IMC units with lab-confirmed SARS-CoV-2 infection, symptom onset or date of test ≤10 days prior inclusion.

Exclusion Criteria:

* Pregnancy, unability to give consent (e.g. informed consent form not available in patient language or non-judicious)

Where this trial is running

Bern, Canton Of Bern

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions COVID-19Sars-CoV2AerosolsInfection transmissionInfection riskRespiratory Tract InfectionsVirus Diseases
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.