Commercial Henry Hoover Vacuum CleanerCommercial Henry Hoover Dry Vacuum Cleaner a true professional in every sense of the word but never without that famous smile, loved by users the world over ask any Henry owner. Full Twinflo two stage professional motor giving exceptional performance; with Auto Save Energy Conservation 50% Energy saving 30% Improved Air Quality 20% Lower Noise Level. Every time you switch Henry on you will automatically start on the economy setting, only if more power