Covid ward

Researchers find filtration to reduce Covid air particles

A study carried out by the University of Cambridge and Addenbrooke’s Hospital has found that portable air filtration and ultra-violet sterilisation devices could be an effective method of removing COVID-19 particles from the air.

Dr Vilas Navapurlar, a consultant in intensive care medicine who led the study, said: "Reducing airborne transmission of the coronavirus is extremely important for the safety of both patients and staff.

"Effective PPE has made a huge difference, but anything we can do to reduce the risk further is important,

"Because of the numbers of patients being admitted with COVID-19, hospitals have had to use wards not designed for managing respiratory infections.

"During an intensely busy time, we were able to pull together a team from across the hospital and university to test whether portable air filtration devices, which are relatively inexpensive, might remove airborne SARS-CoV-2 and make these wards safer."

Devices, which contain highly efficient particulate air filters and UV sterilisers were placed around the ward. The filters consisted of thousands of fine fibres which are knitted together to filter out the Covid particles.

The machines filtered the entire volume of air within the room between five and 10 times an hour causing transmission between patients and staff to decrease due to the minimising of airborne particles.

Air samplers, like those found in PCR Covid tests, were placed around the room to test samples of the filtered air. The results showed that traces of the SARS-CoV-2 virus have been reduced, whilst also reducing levels of other particles such as bacterial, fungal, and other bioaerosols.

Dr Andrew Conway Morris, from the department of medicine at the University of Cambridge, said: "We were really surprised by quite how effective air filters were at removing airborne SARS-CoV-2 on the wards.

"Although it was only a small study, it highlights their potential to improve the safety of wards, particularly in areas not designed for managing highly infectious diseases such as COVID-19,"

NHE Sept/Oct 21

NHE Sept/Oct 21

Improving care for long-term conditions

Join us in our September/October edition of National Health Executive, as we explore a range of topics impacting and improving the care that we can deliver to patients, the facilities within which we deliver them, and the opportunities in the digital space to accent and evolve our care capabilities


View all videos
National Health Executive Presents

National Health Executive Presents

NHE365 Virtual Festival: Digital Healthcare

The integration of new technology, such as using virtual outpatient appointments instead of face-to-face reviews of patients in the hospital. Adapting the ways in which our NHS workers serve people has been critical in continuing to provide high-quality treatment, a positive patient experience and preventing Covid-19 transmission during the pandemic. Our healthcare sector has the potential to transform the way we continue to provide essential services while also improving patient care. But how easy is the integration of these innovations into routine NHS practice?

On the 28th of October, at the NHE365 Virtual Hospitals & Technology Enabled Care online event, we will be discussing patient flow and experience, reducing waiting times, reducing the patient backlog and increasing technology adoption. Will you be attending? 

Finger on the Pulse

Ep 14. Health messaging is a science, Professor Craig Jackson

On Episode 14 of NHE's Finger on the Pulse podcast, we're joined by Professor Craig Jackson, Professor of Occupational Health Psychology
Birmingham City University to discuss the coronavirus pandemic, the health messaging around it and how those in power have missed a trick by overlooking the key role of psychology in informing the public of restrictions, measures and the ever-changing situation

More articles...

View all