Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not on high speed

I was shocked to read in the instruction book that you cannot continuously run this cleaner on HIGH. It tells you how powerful and worthy the motor is in one sentence and then tells you the motor won't stand being run on high constantly ! The CADR is only 70 and that's not much compared to other models by other manfacturers. AND the filers even at the cheapest web sites are expensive ! I think this thing is going back tomorrow....