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2. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   A portable system has an indoor unit on wheels connected to an outdoor unit via flexible pipes, similar to a permanently fixed installed unit (such as a ductless split air conditioner). Hose systems, which can be monoblock or air-to-air, are vented to the outside via air ducts.

3. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

4. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Today there are mini-split (ductless) air conditioner units available with SEER ratings up to 42. [10] [11] During the 2014 AHR Expo, Mitsubishi unveiled a new mini-split ductless AC unit with a SEER rating of 30.5. [12] GREE also released a 30.5 SEER rating mini split in 2015 as well. [13]

5. LG Electronics - Wikipedia

   en.wikipedia.org/wiki/LG_Electronics

   LG Electronics is a part of LG Corporation, the fourth largest chaebol in South Korea, and often considered as the pinnacle of LG Corp with the group's chemical and battery division LG Chem. It comprises four business units: home entertainment, mobility, home appliances & air solutions, and business solutions.

6. Panasonic - Wikipedia

   en.wikipedia.org/wiki/Panasonic

   Panasonic has offered a wide range of products and services, including air conditioners, refrigerators, washing machines, compressors, lighting, televisions, personal computers (Matsushita JR series, Let's Note ), mobile phones (as a subsidiary of TCL Electronics), audio equipment, cameras, broadcasting equipment, projectors, automotive ...

7. Elevator - Wikipedia

   en.wikipedia.org/wiki/Elevator

   Electric fans or air conditioning units to enhance circulation and comfort. A control panel with various buttons. In many countries, button text and icons are raised to allow blind users to operate the elevator; many have Braille text besides. Buttons include: Call buttons to choose a floor. Some of these may be key switches (to control access).