Request ID: FOI-1642-2122 Date published: 01 November 2021
You asked
Today I noticed a poster on the tube which said "the air on our tubes is refreshed every three minutes and so you can travel safely"
Can you direct me to scientific paper(s) which
i) support the claim of ventilation
ii) support the claim that this will enable me to travel safely in these times of Covid.
We answered
TfL Ref: FOI-1642-2122
Thank you again for your request received by us on 18 October 2021 asking for information about air refresh on the Tube. Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy. I can confirm that we hold the information you require.
We have previously replied to a similar request for this information which is published on our website at the following link.
If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me.
Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.
Yours sincerely
Eva Hextall FOI Case Management Team General Counsel Transport for London
