What happens if you breathe in a little bit of Freon from a fridge?

Breathing in a small, trace amount of refrigerant escaping from a household refrigerator in a reasonably ventilated kitchen or living space typically causes no immediate harm or lasting medical effects, as standard home appliances contain relatively modest volumes of gas. You might notice a faint sweet, ether-like, or chemical odor, but minor exposure rarely results in acute toxicity. However, if a large volume of refrigerant is suddenly discharged in a tightly confined, poorly ventilated pantry or closet, inhaling the concentrated vapors displaces oxygen in the lungs and can lead to temporary symptoms such as dizziness, lightheadedness, headaches, nausea, or throat irritation. You can troubleshoot by immediately opening nearby doors and windows to cross-ventilate the area and stepping outside into fresh air. You can verify that the environment is safe when symptoms disappear and air quality returns to normal.