I throw in Cheerios or popcorn to see if they know to vacuum that up rather than avoid it. I also run them over oatmeal and flour to see how well they pick up fine debris and have them tackle both thick and low-pile carpets. I watch to see how https://top-3-automatic-vacuum-cl19753.qodsblog.com/34724541/o-melhor-lado-da-top-3-automatic-vacuum-cleaners