The operating noise of the indoor and outdoor units is measured in a high-performance anechoic chamber. The noise test verifies that the operating noise is low enough to allow the user to talk and sleep comfortably while the product is operating. An air conditioner is operated in a test room simulating a living room testing cooling speed, cooling efficiency, and temperature and humidity differences throughout the room. The operating noise of the indoor and outdoor units is measured in a high-performance anechoic chamber. The noise test verifies that the operating noise is low enough to allow the user to talk and sleep comfortably while the product is operating. Potential problems are checked by tests such as showering the unit for a predetermined amount of time. Contact sections on printed circuit boards are also resin-potted to prevent adverse effects caused by an unlikely exposure of droplets to water. Panasonic air conditioners are designed with a level of durability that delivers high performance even under the harsh environment of regions such as the Middle East. Tough specifications allow them to withstand operating temperatures up to 55ºC and prevent the entry of sand and dust. The Condenser fins are coated to enhance their durability against water, air, and other types of corrosion. The 360° Air Flow function enables quick cooling at every part of the room by blowing cool air in multiple directions.