Our loyal customers form Northbrook brought in their Sebo vacuum cleaner with poor pick up and a bad smell. We've known these folks for a few years so we suspected that their 3 German Shepard's had something to do with these problems. We performed a complete cleaning & tune up, we replaced ALL3 filters and brush bar. Now they have a perfectly working Sebo K3 and we have a happy & loyal customer in Northbrook.