Developed for daytime cleaning, the 4.5Q Sealed HEPA Allergen Upright captures dust and allergens with its clean-air system and incredible filtration. With the True Balance brushroll and an innovative sound-dampening system, this LEED-Compliant, CRI Green Label certified cleaner is the ultimate in filtration with a sealed HEPA filter and clog-resistant tools that store onboard. Synthetic media filters 96.75 percent of allergens down to 0.3 microns for cleaner air.