Combine diced pears, lemon juice and cinnamon to make filling.
Unroll each room temperature pie crust and using a 4.5 inch biscuit/cookie cutter cut out 4 holes in each pie crust. Moisten the outside edge of each circle with water.
Place 1 ½ tablespoons of pie filling in the center of each circle. Fold the circles in half and press the two seams together using your fingers. Use a fork to seal the edges. Use a sharp knife to score the top of the crust three times.
Lightly spray each hand pie with grapeseed oil. Sprinkle each pie with the sugar.
Pre-heat air fryer at 350°F.
Lightly spray your air fryer basket with grapeseed oil. Place the hand pies in a single layer in the air fryer and cook for 11 minutes or until the pie crust is nice and golden. Repeat with remaining hand pies.