Professional Results in the Home! The Ultimate in Power, Performance & Portability. A perfect description of the Professional Evolution Full-Size Canister Vac. A new generation of beautiful powerful cleaning systems. A powerhouse for tackling tough jobs with ease. Nothing beats Professional Evolution Full-Size Canister Vac for getting out embedded dirt. Total Performance Cleaning System! Available in 2-speed or variable speed - Industrial quality, that cranks out an impressive 4.0 Peak Horsepower (more than units selling for twice the price!) and a 4-stage, HEPA-certified air filtration system that traps 99.97% of all airborne allergens, dust and animal dander for a cleaner, germ-free home environment.