I am very disappointed with these filters, they are poorly made. The filter paper is thinner than the original pre-filter that the vacuum came with and barely sticks to the orange plastic frame, at least on most. Two filters were patched by the manufacturer so that the filter paper can even get there. One of the six filters isn't sealed and the paper just dangles around. These filters don't look like they will stand up to reuse as the filter paper has little to no overlap with the frame. Since the paper is quite thin, the motor part also sucks in more dust, which should prematurely reduce the suction power of the vacuum cleaner. One filter (in this set of 6) that I used for less than a minute made my new vacuum scream horribly unlike the original B&D pre-filter. I cannot use these replacement filters.