Small chest freezers can be used in commercial or industrial purposes as they have more capacity. These chest freezers have a top-mounted compressor which helps them run quietly and keeping the temperature below -18°C inside the freezer where there is no need for additional temperature.
These small freezers are mounted on a compressor which helps them maintain small temperatures at below speeds even while they are on the move. Portable freezers are typically mounted on a compressor which helps them run quietly while keeping power consumption low.