SHARK DuoClean Lift Away Upright Vac

***ATTENTION*** 3-30-21 I HAVE FIGURED OUT WHAT IS WRONG WITH THIS UNIT. THE FILTER BEING CONE SHAPED RESULTS IN ONLY THE VERY TOP OF THE FOAM FILTER ACTUALLY DOING ANYTHING. THIS MEANS A VERY SMALL PORTION OF THE FILTER GETS CLOGGED UP WITH DUST AND THE LARGEST PART OF THE FILTER DOES NOTHING. SO AFTER USING THE VACUUM TWO OR THREE TIMES THE FILTER BECOMES CLOGGED RESULTING IN VERY VERY POOR SUCTION. ONCE THE FILTER IS CLOGGED UP THE VACUUM NO LONGER CLEANS CARPETS OR RUGS, RATHER IT GRINDS THE DIRT DOWN DEEP INTO THE FIBERS. THE ONLY WAY TO COMBAT THIS IS TO BUY ANOTHER FILTER AND SWITCH THEM AS SOON AS IT LOOKS DIRTY OR PULL THE FILTERS AND CLEAN THEM AFTER EVERY 2ND OR 3RD USE. ***THIS IS100% DO NOT BUY A SHARK VACUUM WITH A CONE SHAPED FOAM FILTER.*** I had been extremely satisfied with our original shark purchase approximately ten years ago. It is the white professional version of the lift away series i believe. We still use it in our basement. It has been a top notch performer from day one. We couldnt have been more satisfied with it. So i was certain we would be getting an even better unit this time around! I couldnt have been more wrong. My wife noticed right away that this new unit lacked the suction of the old by quite a bit. It left dog hair on our only rug. We have a white dog and dark area rug so its hard to miss. I brushed it off thinking that she must not have been using the right settings. Until recently when i used the vacuum myself. What a hunk of junk this thing is! We literally have one 7x10 area rug and this thing left dog hair everywhere. I spent a half hour trying to get it all off. Trying both rollers on, one roller on. The air dam closed, a little open, all the way open. I checked the filters, everything. NOTHING WORKED!!!! So i got the old vacuum and yep. It picked it right up. Every last piece of hair was gone. What ive found is that this vacuum does a great job on the hardwood but is just awful on any kind of carpets. I went back over the 7x10 area rug i had just spent 30 minutes on with our old vacuum and picked up another half canister of dust and hair that the new one had been grinding down into the rug. Not only that but there was a ton of sand UNDERNEATH the rug itself! This never happened with the old shark vacuum. We would lift the rug once a month and there would be a dusting of fine sand not a sandbox like this left. Sadly our return window has closed on this hunk of junk. So ive got to eat the $350 i spent on it. The old shark is no longer produced either so i guess well have to give dyson a try this time around.