Make a few slices through the fat strip on each pork chop with a sharp knife.
Drizzle oil on pork chops. Combine salt, onion powder, pepper and garlic powder and sprinkle over pork chops.
Spray basket of air fryer with non-aerosol cooking spray (or brush lightly with additional canola oil)
Place seasoned pork chops in basket and cook for 20 minutes, turning once half way through. (*NOTE that thinner pork chops will cook more quickly. Flip at the 10 minute mark and check the temperature -- if they are nearing 145 degrees F then cook just a few minutes more. The cook time will depend on the thickness of your pork chops)