Free face coverings should be provided to London public transport passengers.
Volunteers from Transport for London (TfL) and the Greater London Authority will distribute masks starting Monday.
More than a million will be distributed at the metro and bus stations with the highest number of customers during the lockout, said TfL.
The wearing of a non-surgical mask will be compulsory on public transport in England from June 15th.
- Face covers will be mandatory in public transport
Face covers will be available at stations, including Seven Sisters, Brixton, Stratford, Baker Street and Paddington as part of a pilot program funded by TfL.
TfL estimates that between 30 and 50% of public transport customers already wear face covers.
A TfL spokesperson said the average cost of a mask was 27p.
Doctors have urged the government to make face covers mandatory in all places where social distancing is not possible.
Transportation Secretary Grant Shapps told the BBC that the new face covering policy was introduced on June 15 because “this is when there will be a sharp increase in the number of people using public transport ”.
“This is when the non-core retail business comes back, it’s when some high schools come back,” he said.
“The evidence seems marginal on this, so there is a lot of debate among scientists.
“But we think we absolutely have to do everything possible. “
London Mayor Sadiq Khan said: “I am delighted that our lobbying has paid off and that the government has finally understood and forced people to wear a face covering on public transport. “