You will need a large amount of money to buy an air conditioner. These AC units require professional installation, which can take several weeks. A unit that is too large will not reach the desired temperature as quickly and will cause premature breakdowns and short-cycling. If you only need to cool a single room, a portable air conditioner is a good choice. The decision to go portable for your air conditioning needs may prove to be exactly what you're looking for. It consists of a large outdoor compressor/condenser, many indoor evaporator coils, and a series of ducts. Portable ACs tend to be a bit louder than window ACs, since they aren't able to direct as much sound outside. Portable ACs are versatile and free-standing units and can be moved from room to room as needed. They can improve indoor air quality, by filtering out dust and pollen. Lack of knowledge is the main cause of doubts. In commercial and industrial settings you may need to protect your assets and property from the heat generated by electronic devices. If you reside in a humid area, you will know how uncomfortable high levels of humidity can be. These ACs are also equipped with sensors that automatically adjust temperatures to your needs and preferences.