Okay, these are OEM filters for possibly the best vacuum cleaner in the world. This little thing sucks up a huge handful of dog hair and trash in one quick Passover. I'm actually leaning in now and making my room with him. I don't know if it's because it has the same power as a full rack but only 1/3 the slot to suck things in. Therefore, the suction power is much greater. The result is a very thorough cleaning. It copes very well with stairs and vehicles. It's a small power station! I'm going to make a handle to use as a stand, I really like it. Plus, when I got it, it cost about $40! The only downside is that due to its high power, it pollutes the filters a lot. You can clean them, but I'd still say I change them every 15-14 uses. For me it's about 7 months, so I'm fine with that. About $10 a year for filters are kosher.