Here's the blender mom bought and I still have right here behind me... powerful 950 watt motor, not that dinky 500-600 watt stuff they call powerful today PPPpfffffttt
Time for some air.. Note item #2 is that neat and unique a/c that fitted both sliding and up/down windows. I had one I got 2nd hand around 1973, gave it to sis when I moved out and it's long gone now unfortunately
Back in the 1970's. Was VERY well acquainted with the thing from having to clean several rooms including staircases with the darn thing. Liked the concept of being able to leave the unit in place and go around.