I use this vacuum to clean the carpet around a couple of litter boxes rather than lugging around a large car. It pulls in garbage without throwing it backwards (like a big machine does), it has a slightly more moderate hum than other handheld vacuums I've used, but here's the problem. This vacuum cleaner is sold with a "washable" filter, which may well be; but I always want a backup or two. Much luck! Revain has combined this with a filter model NOT SUITABLE for this machine. I have provided aโฆ