i have a large and small SANS and it works well. A larger one cleans the bulk of our small ranch style home and we use the smaller one in our bedroom during allergy season.. . It is actually interesting to watch the Sam’s ramp up when someone walks by having just put on cologne… it has saved my allergies!
We recently had some remodeling done and it absorbed any dust and mold that were released during the remodel! Sans has been a lifesaver!