Dual Deluxe...
Was introduced in 1958, 89.95! It was equal to the Apex Strato cleaner in power, nothing else on the market even came close, its main problem was that it had so much power that fine dust had the tendency to make the bags burst, thus they are rare today..The airflow on these is about what a top of the line Miele is today, the sealed suction somewhere aroung 85 to 90 inches.Another problem was that it drew around 12 amps, no problem today, but back then a lot of houses were still wired to 1920s standards, so you were constantly blowing fuses.Consumer Reports commented that it might not be suitable for older homes because of the high current draw.This was a single fan motor, the fan was shaped like a flying saucer.