The filter is located behind the grille on the front of the Samsung air conditioner unit. Slip your hand under the grille tab and pull it open. Slide the grille out from the side or the top of the grille and pull it completely out.
You must clean the filter before you can reinsert it into the Samsung air conditioner. If the filter is left dirty for too long, the machine can switch off due to airflow problems. Run warm water over both sides of the filter to remove dirt and blockage. As an alternative, you can suck out the dirt with a vacuum cleaner.
After the filter is clean, confirm that all moisture is removed from the filter before reinsertion. Blot the filter with a clean towel and lay it in the sun until it's fully dry.
Slide the filter back inside the unit and push the grille closed until it clicks into place. After you've reinstalled the filter, you may turn the Samsung air conditioner on.