Since they only need a small opening, you are safer from outside threats. The unit cools and distributes the air. This ensures that you and your family can breathe clean, fresh air. Portable air conditioners may be used in a wide variety of settings and environments. This is to ensure that every room, no matter the size, receives adequate cooling. While a portable air conditioner is easy to install, it definitely requires more maintenance to keep it running efficiently. Not only are they efficient in regards to cooling a room, but they're also relatively affordable. In terms of noise, the Tosot GPC05AK-A3NNA2B is about average for a portable air conditioner, ranging from 48dBA at its lowest setting to 57dBA at its loudest. The single-hose Air Conditioner pulls warm and moist air out of the room. This type of air conditioner is characterized by its portability, convenience and affordability. Dual hoses are better suited to larger rooms, or homes with multiple window. Portable air conditioners are also useful when you want to cool down a room. I recommend Central Air conditioning if you are looking to cool the entire home.