Using the Powermatic PM1200 Air Filtration System is easy. First, you can choose to hang it from your shop ceiling using the four eye bolts. Then, decide whether to operate it from the cabinet or use the remote control. The remote uses radio frequency, so you can control it from a distance without having to see the unit directly. To adjust the air flow, select one of the three blower speeds according to your needs. You can also set the timer for up to 9 hours of continuous operation if you plan to leave the shop. When it's time to clean or replace the filters, simply remove the filter guards without any tools. The inner filter has fine mesh pockets and can be blown clean. Just remember, an indicator light will come on after 200 hours to remind you to replace the filters. Also, be aware that this product may cause cancer and reproductive harm as indicated by Prop 65.