IMPROVING AIR QUALITY IN THE CLASSROOM THROUGH THE AIR CONDITIONING CLEANING PROGRAM AS AN EFFORT TO MAINTAIN STUDENT HEALTH IN THE LEARNING PROCESS AT THE ANNUR SIDOARJO ISLAMIC BOARDING SCHOOL
Arief Wisaksono; Yanik Purwanti
Objective: A clean, tidy classroom with adequate lighting and a cool, stable temperature will encourage students to focus and feel comfortable during the learning process. Room temperatures that are too hot or too cold can disrupt concentration, c...