Sequoia Central Built in Vacuum Systems The Sequoia Vacuum System offers built-in convenience with the ease and efficiency you need to keep your home free of dust and dirt. No... after you finish vacuuming, so you clean less often with your built in vacuum for better results. Allergies caused by lingering pollen, dust, or animal hair is less of a problem... Central Vacuum is the only built in vacuum system with clean air exhaust. Other built-in systems vent fine dust outside the home. Fine particles are completely contained within Sequoia's...