Assuming you have a window air conditioner:
1. Unplug your air conditioner and remove it from the window.
2. dismantle the unit by removing the front grille, screws, and fan blades. Be careful not to damage any of the parts.
3. Clean the front grille, fan blades, and all other parts with a damp cloth. You may need to use a mild soap or cleaning solution to remove any tough dirt or grime.
4. Rinse all the parts with clean water and dry them completely.
5. Reassemble the air conditioner unit and reinstall it in the window.
6. Plug in the unit and turn it on. Enjoy your clean, cool air!