The air intake on a tumble dryer is typically located at the front or the rear of the appliance, depending on the specific design. In most cases, it is located at the front of the dryer, either near the bottom or just above the door. This positioning allows the dryer to draw in fresh air from the surrounding environment for the drying process.
However, it's important to note that different dryer models from various manufacturers may have slightly different designs, so the exact location of the air intake can vary. It's always recommended to refer to the user manual or manufacturer's instructions for specific information regarding your tumble dryer model.