The National Air Duct Cleaners Association (NADCA) offers a rigorous certification exam called the Air Systems Cleaning Specialist Certification (ASCS) examination preferably administered to an owner of a company, a principal, or a key employee in charge of and responsible for project management and the overseeing of air duct cleaning projects. This provides a system [...]
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NADCA Exam Study Guide Review
The National Air Duct Cleaners Association (NADCA) offers a rigorous certification exam called the Air Systems Cleaning Specialist Certification (ASCS) examination preferably administered to an owner of a company, a principal, or a key employee in charge of and responsible for project management and the overseeing of air duct cleaning projects. This provides a system [...]
