H-P Products’ new Vacuflo Maxum Replaceable Filter Bag series of central vacuums includes the Maxum 5 (for homes up to 5,000 sq. ft.) and Maxum 7 (for homes up to 7,000 sq. ft.). Maxum power units feature powerful suction to remove 100 percent of vacuumed dirt and dust. The Maxum power unit line lets users experience a dirtless cleaning system with the use of CleanShield replaceable filter bags, constructed of three layers of cloth filter material, and assembled using a heat welding method that does not allow any dust to escape.