Bosch AC malta has many commercial solutions, including designing and installation custom-made ventilation systems that filter pollutants from the air while providing fresh oxygenated air at controlled levels DL Group specializes in the design and installation of custom-made ventilation systems that filter pollutants from the air while supplying fresh oxygenated air at controlled levels. It's a perfect solution for any indoor or outdoor space. Customers will enjoy a cleaner and healthier environment when they install the DL Group. It's perfect for offices, restaurants, or any commercial workspace where productivity is important.