This video should give you a good walkthrough To sum it up: Every 1-2 months take the front shield off and wipe it down with a rag and warm soapy water to get rid of the dust, do the same with the rear shield. Wipe down the blades with a damp cloth. Maybe every 3 months, take the blades off completely and used some compressed air and blow out the motor and wipe down the outside with a dry or slightly damp cloth to get off dust. Place a drop or two of lubricating oil in the bearings like 3n1 oil. Keeping it cleaned and oiled will greatly reduce friction and heat generated in the motor and prolong the lifespan. But even if you do this monthly, if you just have a cheap fan it might not last too long. I don’t know of any “top name-brand fans”, but some popular options off the top of my head are Lasko, Honeywell, and Vornado.