Does artificial grass need maintenance?

I want to know how to make it last longer than usual

Yes, but very minimum compared to real grass lawns. If your artificial turf being used normally, all you need to do periodically are following:

• Blowing off leaves
• Rake up the matter areas If you need to clean your artificial lawn, you can use your garden hose to spray the turf, or using regular detergent to wash off your grass. If you need to get rid of bad smells, just use some vinegar along with hose to rinse off your artificial turf.