US lawArizonaRegulationsTitle 7 — EducationChapter 6 — School Facilities BoardR7-6-215R7-6-215R7-6-215. Classroom Air QualityLast amended: 2023Length: 19 wordsOfficial source Cite as Ariz. Admin. Code § R7-6-215The CO2 level in each general and specialty classroom shall not exceed 700 PPM above the ambient CO2 level.PreviousR7-6-214NextR7-6-216