Electrolux EL7020B Oxygen 3 Ultra Canister Vacuum The Electrolux EL7020B comes equipped with a new Quiet Clean power head which features a 180 degree left and right swivel. MicroSeal Fresh Air technology with sealed HEPA filtration captures ultra fine particles for cleaner indoor air. The optimum sensor system automatically monitors the cleaners performance to ensure peak efficiency. Thoughtful design details like fingertip controls and automatic cord rewind takes the strain out of vacuuming. The fully featured power nozzle deep cleans all types of carpets and hard floor surfaces.