(NAPSI)-While many parents may breathe a sigh of relief when school reopens in the fall, they may also be glad to know schools can take steps to support cleaner indoor air, including HVAC system inspection and cleaning as part of summer maintenance.

What's Up With Ducts Ducts get dirty.

Even with the proper use of filters, the school's heating and cooling system can get really dirty through normal school day use, just as surfaces in your home get dirty and dusty over time and have to be cleaned.