I bought this four years for work (I have three walls of glass surrounding me so it gets hot quickly) and have had it on EVERY day in the office for four years and it hasn't failed me yet. Sure, the fan will sometimes not stay in position, and may tak two hands to adjust the speed, but as long as it keeps me cool, provides air flow, and still run without issue, that should say enough about its durability and ability to provide airflow. I've decided to buy another one in the near future.