BBCNEWS BBC News December 1, 2021 14:48:00
They used the same technique that does the pcr covid tests you send away. so if you're honest, then when vilas first came to you with the idea you didn't think it would work? i was very dubious about not whether the filtration devices would work, but about whether'd we be able to detect things in the air at a sufficient level to actually show that it was there. now, i know you found the coronavirus, but you found a whole load of other stuff, too. what was it? and was it potentially harmful? yeah, that was a bit of a surprise. the amount of things that we detected in the air was quite a lot. we...