When I first bought it I thought it was ok - the fit was snug and the foam seemed very dense but my vacuum was on so I felt ok. After a few months I noticed that these filters do not let dust particles through due to their density, but instead get into the bowl surrounding the filter and my vacuum cleaner does not suck as well - return the original and it's good again. The only thing I can understand is that the foam is so dense - it acts more like a dirty filter - that it no longer traps dust and affects the vacuum's suction power. It is better to overpay for the original than to change vacuum cleaners.