continuingly introduced new fresh, air filter through hospital great help of filters. sure enough, despite hundreds of million people have flown over the past 20 months, there only a few dozen confirmed cases on airlines. it seems like this is a place that we really should have been focusing on for the last 20 months i need to focus on even more now, doctor céline gounder. so the indoor quality air at hovered have been on this topic. we have really focused on improving indoor air quality, ventilation and air fruit filtration in schools. there is over 170 billion dollars in the american rescue plan. and other legislation that allocates funding tes fundinand as i said, fundinh the schools to make these kinds of infrastructure upgrades. but that has to be planned and the school district level. school districts need to assess