COVID-19: ventilation of indoor spaces to stop the spread of coronavirus.
Public Health England (PHE); 2021.
[Guidance, advice and information on how ventilation of indoor spaces can help to stop the spread of coronavirus (COVID-19), including how to increase ventilation at home and in other settings.]
Freely available online

Age Groups
Conditions and Lifestyle Factors
Coronavirus Infections
Home and Social Settings
Population Health
Residential and Nursing Homes
Workplace Health
Staff Groups
Health Promotion Specialist
Non-Clinical Professional
Public Health Doctor
Public Health Specialist