I created a ventilation grid for the kitchen top to eliminate the hot air from the washer dryer LG. The air intake is 200mm long. and 40 mm wide. It is fixed to the top using M3 screws. I recommend using silicone at the base of the grill to make the edges waterproof when cleaning the kitchen table. It's useful for those who have little space around the washing machine. I used PETG Overture filament.