Sustainable charcoal production all of a sows are Available Online and of course you can share and discuss on africas Facebook Page and other social media platforms. Crime fighters tune in now. Google. The air we breathe d in normal times its something we can take for granted but like so many things coronavirus has changed that d. Air Conditioning Systems are suspected of a role in a series of outbreaks now businesses are going to extraordinary lengths to reassure us that they are area safe. Nowhere is that more the case than in the skies with passengers packed together taking in refill today or. So what will it take for us to breathe easily again. This is your covert 19 special here on the w. Im frisk over and roll and welcome with summer on the horizon many of us will be tempted to switch on the air conditioning to cool down but recent insides of a harvard Infectious Disease experts suggest that air conditioning use across the Southern United States may be a factor in spiking colvin 19 case its plus a coronaVirus Outbreak in a german meat plant was also linked to cool exists so how safe is the air we are breathing. A common sight for these coronavirus times people pouring off public transports wearing face masks looking for that 1st goal of fresh air. Mosques in many places a compulsory but as the weather gets warmer is that enough to ease worries. I feel if i have a mask on my children and i try to make sure that im like one and half or 2 meters away from somebody who also has meant i feel quite sure see can you say what. You want to get around this is they have to do the. Most modern trams and buses officiate with conditioning units which draw fresh air from the outside. But go underground and its a slightly different story though passenger numbers is still down compared to before the pandemic carriage is a starting to fill up again. On the trams and rough is my strong growth experience around the world is going to have to figure its very in confined spaces without much translation these are considered hi rick. Despite the lack of air conditioning transport officials point to other sources of. Use a lot of. The vehicles. Driving at the stations the doors open up. The stations of. The trains going back and forth because they have these new trains pushing with their speeds moving here. The corona Virus Outbreak to meet plants in northern germany has put conditioning under the spotlight again. It follows a chinese study that suggested akon dishing help spread the virus to diners in a growing show restaurants the air condition has a movement of the air they can transfer. Droplets of the viruses from one to the other therefore you need much more air pressure from the outside in such cases. Scientists admit its too early to make any firm conclusions about conditioning units as well as fresh as they say high efficiency filters can help reduce the presence of the virus such filters aboard airlines use insight their cabins recycling the afro every 3 or 4 minutes but this only kicks in during the flight and not before and after. Conditions has to be acted before the passion passengers and the plane we think dead air dry air promotes so formation of arizona and consequently the possibility of an infection. Past summer and the Holiday Season approaches this year theres more than simply just a destination to consider. Well for more lets bring in young chan hes a Mechanical Engineering professor at Purdue University in the u. S. State of indiana and the editor in chief of the academic journal building and environment welcome to w. Young the Scientific Community seems to be undecided when it comes to air Conditioning Systems and the corona virus do you think they are safe to use during a pandemic. Thank you very much a crystal would be media. Air conditioning system in general i think is what is silly however the f. T. C. Buzan live in conditioning system and they in a building see and hear prince and saw could have proceed to sit and talk about the risks ok can you tell us how and why yes example when you called when you called if you generate a lot of the top left and also top of that it will go within the inside. Of the space and typically will wonder about the 3 to 4 minutes in the airplane and 10 to 12 minutes in buildings and zabaleta will the idea and he will greet even if you stay in the sand room with a single patient and you make the get at least over the 90 ok now airlines are saying it is safe to fly because they use a special fill 1st which their lines claim clean almost 100 percent of their aboard a plane is thats true yeah it is true that the airplane use early high efficiency particular field have a field which you can field out a particular date with. A logic so in principle you can field out all the. However. Information could it just inside of train so be thought. Been shut out but if your condition system as i just mentioned do it in lisas 3 to 4 minutes you know what a high chance to get invited. Ok when its about the filters that are key here can they be used in other places like public transport like office buildings. Yes in prison ball is a half a field has it can be used at the in any condition insistent however thats a problem because when you use a filter then you need a powerful fang in order to push it in. Now most of the build ins Public Transportation systems like in china and buses are subtle ways they are not that you could to with alyssa powerful fan so when you used to have a field that means that you will have a much less air so thats also a dilemma to use as i have. To have what a powerful fence did ok are these fans being worked on to integrate them into regular air Conditioning Systems. In the air conditioning system we do have a normal fans a lot of fans up to begin to work at target with a little low efficiency filters and the law efficiency field is typically installed in the building nominee good because even less involved can then make you have no problem with that but to do it in the pandemic of causing you to have what is small that is could be recirculated the in the air condition insistent and you may not be able to stop that. And in general when it comes to air conditioning what can companies do to lower the risk of infection for their employees working in offices. You know thats great question chris and the 1st thing you definite want to do you good to see you can install a high efficiency filters there and i doubt because it might not be possible then a 2nd away if you have to run condition insistence i will recommend that you use a 100 percent. Because outside it is unlikely to contain and he called me the 19 by this so you surprised just how sad it will be when you say so tomorrow you could open a windows will be great because the natural frontal ation is a very good to reduce and the. Dividers the inside of a space is and if you could also consider to buy a. Filter. Inside. Because a low table is also what efficient and dolphin did particular documents. Mechanical engineering professor at Purdue University yeah thank you for your insights though i think you are nice it chris. And now it is over to another expert in his field our science correspondent Deborah Williams answering the questions you sent us. So how dangerous are surfaces do we need to disinfect everything that comes into the home. So if the virus can remain viable for up to 3 days on some surfaces how much of a threat do those surfaces pose objects that have been contaminated and later transfer of disease are known as foam mites and theres been a lot of discussion about how big a role theyre playing in the current pandemic increasingly though the consensus is that that phone might transmission is the exception rather than the norm thats because a whole sequence of events has to happen for it to occur starting with the smearing of significant amounts of the virus on a surface by a by a by someone whos infected when the clock starts ticking as it begins to lose viability frequently touch surfaces like door knobs or Elevator Buttons pose more of a threat than say a carton of milk from the store but even if you pick the virus up on your hands you still have to actively transport it to your face within a certain time frame and not wash your hands in the interim in comparison you just have to be close enough to someone shedding the virus as an aerosol and to breathe in and to catch the disease that way so most experts and Health Authorities say now that although phone my transmission is possible a coded 906 reds much more easily person to person. And finally the coronavirus pandemic lockdowns may have stopped us from doing the things we enjoy most now. Taipei International Airport came up with an idea to help those who missed being in the air they offer the flight to nowhere organizers say 10000 people took part in the draw and 30 lucky winners were chosen they could take a friend and were given the chance to check in walked past few different shops and board a plane which remained on the ground even included a water spraying. At least nobody lost any luggage there thats a show thanks for watching the sea of economic. Numbers of corona virus infections in Meat Processing plants. Crude treatment of livestock transported across europe. Terrible living on what conditions for employees. How toxic is the Meat Industry. Global 3000. Next on t w. Mice mindlessness. Like. She painted me. And mine. I could fascinate all of those who looked at me. The secret of mona lisa. 45 minutes on d w is going to tell managers who had a good day nothing could change you know the banks. And so watch the language of the bank. Speaking the truth global news that matters g. W. Made for mines. Every journey begins with the 1st step and every language the 1st word american could coax in germany. Why not go with him. Its simple money on your mobile and free. T. W. Zealand in course. Terms maybe see. I. Welcome to global 3000 droughts is on the rise in china sea and water is becoming an ever more Precious Resource how a farm is fact helping. Look at the Meat Industry and find out what conditions are really like for workers employed to find yemens