A lecture in the lecture hall, a seminar in the classroom, hands-on learning in a lab - many students are together in one room and the rooms occupants are constantly changing. Many things are more easily learned in groups. However, if learning is to take place in person, then universities, technical colleges or other post-secondary schools need improved hygiene concepts.
Air purifiers with UV light disinfect the air quickly and efficiently. A UV air purifier is effective against viruses that cause corona, the flu or the common cold. This protects pupils and students - and of course their teachers, professors or instructors as well!