It is an important part of the air conditioning system. It is usually installed outdoors and is mainly responsible for releasing indoor heat to the outdoors through the refrigerant, so as to achieve the purpose of indoor cooling. It is composed of compressor, condenser, fan and electronic control components. The performance of the air conditioner directly affects the cooling effect and energy efficiency ratio of the air conditioning system. When choosing an outdoor air conditioner, it is necessary to consider its cooling capacity, noise level, and the degree of matching with the indoor unit to ensure the efficient operation of the air conditioning system and a good user experience.

MK2-PFU is a sci-fi Combat Flamethrower, a weapon of science fiction. Adopting advanced flame spraying technology, it can generate high-temperature and high-pressure flames. Using a special mixture of fuel and gas, the flame is projected in the form of a jet through an injection device. The design emphasizes combat use, with strong killing power and range. It can spray flames several meters long, forming an instant flame wall that can inflict fatal damage on enemies and armored targets. It has certain protective measures, including fireproof coating and heat dissipation system. Equipped with a portable fuel supply system.