We have 2" blinds on all the windows of our house. They collect dust to the point they look furry. I have cleaned then in the past with a paintbrush but it has been cool and staticky here. The dust was going right back on the blinds. I mentioned to my wife about vacuuming them. She said our vacuum doesn't do a good job and the hose is so short it can't reach the top. I got my shopvac and had to get creative to get the brush end to fit because the hose size was different. I did get it done but it took over an hour and a half to clean 12 sets.