I bought this 30841 model from Menard's a few months ago. I have since found out that Menard's does not carry the HEPA filter for it, so I had to order it off the internet, with of course a shipping and handling charge. The prefilter gets dirty very fast. It is a very thin material that promptly developed a small tear in it. I have tried to buy new prefilters and they told me at hunterfan.com that they do not even make the prefilters for this model. She said I can just not use the prefilter and let it go right to the HEPA filter, which is rather expensive. She also said I could vacuum the HEPA, but when I tried it, it ripped in several places although I used a soft brush. Menard's said they would let me return it. I will get another brand for sure.