Initiative Description: Implement cleaning practices to improve air quality such as dry sweeping chairs once a week, wet sweeping tables once a week, and dry sweeping floors three times a week.

Study Results: Lower dust mite levels. 

Reference: Einarsson, R., Munir, A.K.M., & Dreborg, S.K.G. (1995). Allergens in school dust: II. Major mite allergens in dust from Swedish schools. The Journal of Allergy and Clinical Immunology, 95(5), 1049-1053

Level of Evidence: Very Good