I have several vintage machines that I think clean as well if not better than newer ones.
Hoover Model 29
Hoover Model 63
Hoover Model 70
A few newer Hoover Convertibles from the Hoover Vault in Canton Ohio
The 29 and 63 have shake out bags. I don't let the bags get very full and when I empty them, I take
them outside and shake them out, then I have a garage vac that I use to vacuum the inside of the bag.
I just did my spring cleaning and pulled all my funiture out. I used the Hoover 29, did a great job....then
I used my Kirby Avalir Shampoer to shampoo the carpets.
PR-21
Bud