Power-Star Optima Central Vacuum System 99191, PS-99191 r# n#Power-Star Optima Central Vacuum System Optima is just what the name implies. Here is a full sized version of the Genesis system that offers a larger filtration surface. Having 126 inches of water lift, 118 CFM, and 551 air watts of cleaning power for your home. Air watts is the only recognized testing method as set forth by the American Society of Testing and Materials (ASTM)* F558-98 Standard Test Method for Measuring Air Performance Characteristics of Vacuum Cleaners that tests the actual cleaning power of a vacuum. ASTM International is one of the largest voluntary standards development organizations in the world-a trusted source for technical standards for materials, products, systems, and services. Known for their high technical quality and market relevancy, ASTM International standards have an important role in the
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