so, in really large offices and other buildings that rely on ventilation systems, what can be done? well, specialist engineers have come up with some recommendations. the first thing is to increase the flow of fresh air. there is evidence that this really does make a difference. also to minimise the recirculation of air, especially from one room to another. and avoid stuffy areas where the air is not moving. that's a sign that the ventilation isn't working and the chances of infection are increased. the air is filtered in these systems which should help and give early warning if someone has brought the virus into a building. at the university of oregon, they reckon the filters on each floor could quickly reveal if infections are spreading, and help to target efforts to deal with them. it feels like we have been punching an invisible enemy and now we have a data stream to show us where to punch and when to punch, and that means we can use the right

strategies at the right times. so, before we see office workers return in greater numbers, the advice for every building manager is to think notjust about social distancing and hand hygiene, but also the air, how it's moving, and what it could be carrying. david shukman, bbc news. england's test series against pakistan may have ended today in a damp squib of a draw, with rain at southampton, but the game will still go down in history, because england's james anderson has become the first fast bowler ever to take 600 wickets in test cricket. andy swiss reports. commentator: what a fantastic moment. he's england's wicket taker turned history maker. 600 up forjimmy anderson and a moment of cricketing magic. not that one seemed likely earlier. a decidedly soggy southampton meant they couldn't play until tea, but the man nicknamed the burnley express promptly roared into the record books. commentator: gone! that's the wicket.

the first englishman to take 600 test wickets and the first fast bowler anywhere. azhar ali the victim, snaffled by joe root. no crowd, of course, but it deserved an ovation. it was back in 2003 that anderson took his first test wicket, and since then the hairstyles may have changed, but the hunger hasn't. now 38, he's reached a remarkable landmark. i'm delighted to get there. to get to 600 was really special and, obviously, sharing that moment with guys that i've played a lot of cricket with was making it even more special. the match itself ended in a draw. it meant the series went to england but the day belonged to him. andy swiss, bbc news. that's it. now on bbc one, time for the news where you are.

welcome to bbc news. in a few minutes, we'll be looking at the newspaper front pages here in the uk and around the world. first, a look at some of today's other main stories. up up they had teachers to decide whether face coverings are necessary and corridors and areas. for teachers and children in year seven or above. the labour mp is at westminster. he's the shadow education minister. do you think this will make school

safer? it is another last u-turn and i think we are most concerned about is that there has not been proper guidance given to schools, with the exception of the local lockdown area. it is for each school to decide for themselves in schools are not medical experts. they're doing the best they can, without the expertise they have behind them to give absolute guidance to schools and also provide them with resources necessary to ensure that schools are able to enforce a policy like this. it last—minute u—turn, we've got a crucial moment when parents are seeing the schools changing their minds. the to support the change? know, we would like to go further and should be mandatory, notjust the local lockdown areas, but in all areas with in the corridors to

enforce areas with in the corridors to e nfo rce fa ce areas with in the corridors to enforce face masks being worn for children over the age of 12 and i think that will be a clear policy that any school can follow, rather than being told it is up to each individual had teacher to make their own policy in schools and parents not knowing where they are. and what advice is been taken that your approach is the right one was yellow the who advises have announced that children over the age of 12 should be in communal areas having facemasks and the government and said they would defend local lockdown areas but not in all schools. but it is just to follow the medical evidence that is being provided and that it should be provided and that it should be provided for all schools and in every retail environment and their tour of the same policy for schools needed, they need and parents and children need to know given that changes in schools are going back in

england with these guidance is in place. but do you think schools are safe now these extra measures. six children should be in school, the government responsibility and make sure they are safe and they're co nsta ntly sure they are safe and they're constantly undermining themselves by changing the policies. the policy now should be that children going to school over the age of 12 will have facemasks in communal areas, but thatis facemasks in communal areas, but that is not the policy that this government is introducing, they're introducing a policy on local lockdown with the basis that they should have it but in other areas it is upfor should have it but in other areas it is up for the school to the side, within chesterfield, i could have three of my secondary schools and forcing them policy and another three enforcing a different one. and thatis three enforcing a different one. and that is a providing government leadership or guidance, is leaving everything to schools to the site and we are not happy that the government have done enough. thank you for coming onto the programme and we are not happy that the government have done enough. thank you for coming onto the programme we appreciated. right, now it is time

for the papers. hello and welcome to our look ahead to what the the papers will be bringing us tomorrow. with me are harriet line, deputy political editor at the press association, and political strategist jo tanner. tomorrow's front pages, starting with. the telegraph leads on what it calls the government's u—turn on children in england being told to wear facemasks in school corridors and communal areas. the guardian also reoprts on what it describes as the prime minister's ‘11th—hour u—turn days before students head back‘ to school. the mirror leads on england footballer harry maguire's guilty verdict from a greek court after he assaulted a police officer on the island of mykonos. the international edition of the new york times reports on this week s republican national convention, with an opinion piece warning against fear—mongering from the party.

le figaro leads on the protests in belarus, writing that after 26 years of despotism, president lukashenka is ready to do anything to keep power. and singapore's straits times writes that south korean students in seoul will return to online classes amid mounting concerns over school safety as the country experiences a resurgence of the coronavirus. so, let's begin. schools and masks in england. the front page of the daily telegraph, let's start there. pupils will wear masks in schools after the u—turn. wright, who wants to take off with this. what do you make of it was yellow it is another u—turn by the government because yesterday, downing street they were not reviewing this, saying that despite

scotland's thing that they were taking a review as to whether facemasks would be worn by people in secondary schools when in the communal areas. today, scotland said that plan was going to come into force and pupils will have to do that. late this evening, they have said that pupils will have to wear masks in communal areas and secondary schools, but only in areas where there is a local lockdown. i think as we discussed, actually, this is very confusing for parents and at a this is very confusing for parents and ata time this is very confusing for parents and - at a time when the and pupils at a time when the government - needs and pupils at a time when the government- needs to get this