Science tells us that portable air filters reduce infection risk

Research recently published by experts in Canada shows that portable air filters (PAFs) such as those that could be used to clean the air in school classrooms and other indoor spaces are an important tool to help reduce the risk of transmission of airborne infectious diseases.

Their use in schools could significantly reduce sickness absence of both pupils and staff, helping schools meet their targets and reduce supply teacher costs as well as giving children a better learning experience.

The Canadian experts say that: “In summary, PAFs composed of a HEPA or MERV-13 filter and a fan are simple to use, relatively low cost, easy to maintain, can be moved to respond to changes in occupancy and activity level, and do not generate harmful pollutants.”

As well as cleaning the air of infectious diseases, PAFs also filter allergens, dust and fibres, mould, road traffic pollution, and gaseous chemicals found in many common household items, such as building materials, soft furnishings, cleaning products, cosmetics and art & craft materials.

The expert article concludes by saying: “The stakes are high. The cost of not using PAFs is measured in terms of human lives and long-term health impacts. The utility of PAFs for reducing airborne infectious diseases such as COVID-19 is not an open question. Public health advisors and organizations who imply otherwise are sharing misinformation. Going forward, we expect that public health advisors and organizations will position PAFs appropriately in infection prevention and control plans for both health care and community settings.”

We have an introductory guide to buying air cleaners for schools. Click here to read it.