Can I make this with other types of cheese? – Halloumi is not a traditional cheese, as it does not melt. You could try substituting it with paneer, or with mozzarella cheese sticks.
Leftover halloumi fries can be stored in the fridge for up to 3 days. Keep in mind that the breading tends to soften, and the cheese will harden after being refrigerated.
They definitely taste best served immediately after air frying, so I highly recommend only preparing the amount you need.
Find it online: http://allguiderecipes.info/air-fryer-halloumi-fries/