I confess I haven't used them yet, but I opened the package and checked the texture/material and size of the item sent. Everything is fine and that's exactly what I had with my Shark vacuum cleaner before - no problems and I'm sure there won't be any. I always check the companies reputation and value for money before I buy anything so please don't hesitate to buy. Note: When I wash them, I take them to the sink, put some Dawn on my hands and rub my hands together. Then I rub the filters under running water, and Zarya perfectly cleans them!