These filters are really good. Exactly the same thickness and size as the original filter. Would give it 5 stars if it came with a replaceable HEPA filter which is basically a little piece of cloth that goes to the front so now I have to buy another set of filters because they don't just sell one HEPA filter . myself. I was hoping I could just cut the felt filter that came with the kit, but it's too thick to fit. However, getting 4 filter kits for less than $10 is a great deal and I would buy it again. Luckily, the manufacturer only recommends cleaning the HEPA filter once a year, so I don't have to worry about that just yet. Definitely recommend. This is a great purchase.