Sensor S2 14 HEPA

karcher s2 is decent. Also some of the lindhaus commercial varieties. Depends what problems you are experiencing. I’ve had my issues with certain vacuums in different settings so I have quite a few for different situations now.

Mostly Sebo - Karcher - Windsor Sensor I'd say are the best commercial upright vacuums on the market. Sebo is top tier in terms of warranties. I've heard mix things with how Karcher does business. Riccar is a pretty solid vacuum. Not all of them are made in the US though. Vacuum repair shops won't hate you for bringing them in for repair. I'm not sure how well Riccar is these days for holding up to their warranties; especially commercially. I think this is a big issue in the US right now. For backpack vacuums, I like Hoover's Commercial battery powered line. And Karcher's new battery line - very light weight.