Questions 13 - 18:
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13.	Are air filters and ductwork in the HVAC system regularly inspected and replaced/cleaned per manufacturer’s instructions?
14.	Are there “walk off” mats (measuring at least five steps from door to hallway surface) or other techniques in place to reduce the amount of dirt entering the building?
15.	How often are floors and other surfaces swept, mopped, or wiped down?
16.	Is rain or snow able to enter air intakes allowing standing water to pool?
17.	How often does the maintenance schedule inspect roofs, ceilings, walls, floors, and carpet for water leakage, stains or discoloration, and mold growth or odors?
18.	Is the school adequately ventilated: A. With air supply diffusers, unobstructed intakes and returns, exhaust vents and continuous fans during school hours to allow exchange with outdoor air and proper air pressure? B. To maintain humidity levels between 33 – 55%? C. To maintain temperature levels between 60 – 78 degrees Fahrenheit?