My carpet is old and stinks so I used baking soda to get rid of the smell but it's really bad for the vacuum cleaner. The filters were clogged and the vacuum cleaner was clogged with dust. He stopped picking things up that well, but I knew it was baking soda. After changing the filters and removing and wiping any hair or fur, it ran like new! Replacing a filter is much cheaper than replacing a vacuum cleaner! Next, replace the old rough carpet.