Review on 🔽 Neato Robotics Performance Ultra Filter (4-Pack) - Black, Normal Flow, 4 Count by Jessica Griffith

My D4 cleans great but I'm tired of cleaning the slots on the original open pleated filters. So I bought a box of these for $$ and they cleaned perfectly the first time - I had to empty the dust bin once and clean the filter while cleaning. Next time with a freshly vacuumed filter my bot picked up NOTHING so I put my old worn out pleated filter back in and wow! Lots of dirt in the room which was cleaned an hour before. I can only guess that this filter was clogged with fine dust and the screen didn't allow me to remove it. They will likely return, although I have a note in Neato HELP to see if they have a different idea as to why this happened. *Update -- returned these, Neato sent me some more for free -- same problem -- fine dust gets behind the screen and the filter only works ONCE.