Be sure to order filters for your Dyson model. They fit mine perfectly, were easy to install, improved suction and got rid of the smell and filter noise that I couldn't get rid of before. The price is great too and I like having a spare set. Despite following literally all of Dyson's instructions, I have never been able to clean this "washable" filter. The smell was terrible, although I carefully dried it in the hot sun for longer than recommended. As for the price of this replacement kit, I'm happy to just toss the filter next time it gets really bad. It may not be the most environmentally friendly practice, but our family has severe allergies and asthma, so the reassurance of a clean, mold-free hepa filter is paramount to us. I'm so glad I found her. Will definitely buy again.