How can airborne transmission of COVID-19 indoors be minimised?

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift


During the rapid rise in COVID-19 illnesses and deaths globally, and notwithstanding recommended precautions, questions are voiced about routes of transmission for this pandemic disease. Inhaling small airborne droplets is probable as a third route of infection, in addition to more widely recognized transmission via larger respiratory droplets and direct contact with infected people or contaminated surfaces. While uncertainties remain regarding the relative contributions of the different transmission pathways, we argue that existing evidence is sufficiently strong to warrant engineering controls targeting airborne transmission as part of an overall strategy to limit infection risk indoors. Appropriate building engineering controls include sufficient and effective ventilation, possibly enhanced by particle filtration and air disinfection, avoiding air recirculation and avoiding overcrowding. Often, such measures can be easily implemented and without much cost, but if only they are recognised as significant in contributing to infection control goals. We believe that the use of engineering controls in public buildings, including hospitals, shops, offices, schools, kindergartens, libraries, restaurants, cruise ships, elevators, conference rooms or public transport, in parallel with effective application of other controls (including isolation and quarantine, social distancing and hand hygiene), would be an additional important measure globally to reduce the likelihood of transmission and thereby protect healthcare workers, patients and the general public.


  • Lidia Morawska
  • Julian W Tang
  • William Bahnfleth
  • Philomena M Bluyssen
  • Atze Boerstra
  • Giorgio Buonanno
  • Junji Cao
  • Stephanie Dancer
  • Andres Floto
  • Francesco Franchimon
  • Charles Haworth
  • Jaap Hogeling
  • Jose L Jimenez
  • Jarek Kurnitski
  • Yuguo Li
  • Marcel Loomans
  • Guy Marks
  • Linsey C Marr
  • Livio Mazzarella
  • Arsen Krikor Melikov
  • Shelly Miller
  • Donald K Milton
  • William Nazaroff
  • Peter V Nielsen
  • Catherine Noakes
  • Jordan Peccia
  • Xavier Querol
  • Chandra Sekhar
  • Olli Seppänen
  • Shin-Ichi Tanabe
  • Raymond Tellier
  • Kwok Wai Tham
  • Pawel Wargocki
  • Maosheng Yao
Enheter & grupper
Externa organisationer
  • University of Cambridge
  • Franchimon ICM
  • Technical University of Denmark
  • Aalto University
  • Architectural Institute of Japan
  • McGill University
  • Queensland University of Technology
  • University of Leicester
  • Pennsylvania State University
  • Delft University of Technology
  • BBA binnenmilieu bv
  • University of Cassino and Southern Lazio
  • Key Lab of Aerosol Chemistry and Physics, CAS
  • Edinburgh Napier University
  • NHS Lanarkshire
  • Papworth Hospital
  • ISSO, NL
  • University of Colorado at Boulder
  • Tallinn University of Technology
  • University of Hong Kong
  • Eindhoven University of Technology
  • University of New South Wales
  • Virginia Polytechnic Institute and State University
  • Polytechnic University of Milan
  • University of Maryland
  • University of California, Berkeley
  • Aalborg University
  • University of Leeds
  • Yale University
  • CSIC Institute of Environmental Assessment and Water Research (IDAEA)
  • National University of Singapore
  • Peking University

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi
  • Husbyggnad
Sidor (från-till)105832
TidskriftEnvironment International
StatusE-pub ahead of print - 2020 maj 27
Peer review utfördJa