
Short answer is yes, a new air fryer can smell like hot plastic for the first few uses. It is usually leftover manufacturing oils and the nonstick coating curing and and it should fade once you heat cycle it a few times.
Do a thorough clean. Wash the basket, crisper, and any accessories in very hot soapy water, rinse well, then wipe the interior and heater shield with a warm mix of water and white vinegar. Dry completely.
Run a real burn in. Preheat to 400 F empty for about 10 min, let it cool, then repeat once or twice. On one run, add a small ramekin with a little white vinegar or a few lemon slices to steam inside. After that, cook a sacrificial slice of bread or a halved potato and throw it away.
Clean the heating element directly. Unplug, cool fully, flip the unit upside down, gently brush the element and metal shield to remove film or dust, then wipe with a barely damp cloth and dry. Triple check there is no hidden tape or film stuck near the heater.
Dorm friendly odor control can help. Set a bowl of baking soda or an activated charcoal bag near the fryer while it runs. Crack the window an inch and point a small fan outward for five minutes after cooking. If you have a bathroom fan, run it and leave the basket pulled out to air out while it cools.
Most units stop smelling by the third to fifth cook once you do the above. If it still smells strong or acrid after about ten full heat cycles, contact the maker or exchange it since a faulty heater or coating can happen.
If you decide to swap, try Gourmia 10. The baskets and the crisper trays are PFOA free which helps avoid plasticky off gassing, and that safer coating on both food contact surfaces makes cleanup easier and odors less likely to linger.