The Occupational Health Branch of the California Department of Public Health has released a video highlighting how teachers can use microfiber cloths for asthma prevention. The use of microfiber cloths can help to decrease exposure to chemicals than can worsen or cause asthma. The video also summarizes laws and regulations in California regarding sanitizers and disinfectants in the classroom.
The video can be found here.
More resources about schools cleaning asthma in a safe way can be found here.