Automatic, self-adjusting brush height ensures proper cleaning performance and maximum productivity when cleaning different floor surfaces. Exceptional maneuverability to optimize operator efficiency. Provides excellent indoor air quality with three-stages of filtration, including true certified HEPA, that will contain >99.97% of all dust, pollen, bacteria, allergens, and other particles >0.3 microns. Quick cord clip for simple cord management. Detachable power cable removal for quick service. Standard certified HEPA filter. Tools-free brush removal. Non-marking, tear resistant bumper. Quieter operation than most competitive models at 68 dB(A). Meets LEED requirements. Equipped with spare bag storage and onboard tool. Certified by the Carpet-Rug Institute Seal of Approval Program for soil removal, emissions analysis, carpet appearance, and effectiveness, carpet-rug.org. Filter bag replacement: #APC3285 [JAN-ADVU500-2(10)].