Ensure the thermostat is set to an appropriate temperature. Avoid setting the temperature too low, which can cause the AC to blast cold air when it reaches the desired temperature. Dirty air filters can restrict airflow, leading to uneven cooling and sudden blasts of cold air. Clean or replace air filters regularly according to manufacturer recommendations. Ensure that air vents are not obstructed by furniture, curtains, or other objects. Blocked vents can disrupt airflow and cause uneven cooling. An AC unit that is too large for the space it is cooling can lead to short cycling, where the unit turns on and off frequently, resulting in sudden blasts of cold air. Ensure that your AC unit is properly sized for the cooling area. Inadequate insulation can allow cold air to seep into the home, leading to uneven cooling and sudden blasts of cold air. To maintain consistent temperatures throughout the home, improve insulation in walls, windows, and doors.