How to reduce the fan noise

How to reduce the fan noise The fan seems to have got very loud and annoying. Do I need to switch it out? It was fine for a year.
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Guest [Entry]

"First thing is to clean fan and surrounding area. Canned air is good to do this so you don’t actually touch anything inside. A dirty fan could limit its cooling ability and result in it working hard to cool things down. Make sure any air vents , also, are free of dust. Here’s the service manual:

Dell XPS 15 7590 Repair"