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The idea of using technology to give people relief from summer heat was a radical and unproven idea when Trane became an air conditioning pioneer in 1931. Trane fundamentally changed the concept of air conditioning large buildings with the 1938 launch of Turbovac, the industry's first hermetic, centrifugal refrigeration machine. This was the beginning of a long chain of innovations leading to Trane's current CenTraVac®, the industry standard for large commercial air conditioning systems. This is the most energy efficient system available anywhere for large buildings and it has earned Trane the "Best of the Best" Award from the U.S. Environmental Protection Agency. Trane is about air – cool air, warm air, clean air. As a world leader in air conditioning systems, services and solutions, we control the comfort of the air for people in homes and many of the world's largest and most famous commercial, industrial and institutional buildings. Trane offers a broad range of energy-efficient heating, ventilation and air conditioning (HVAC) systems; dehumidifying and air cleaning products; service and parts support; advanced building controls and financing solutions. Trane has more than 120 years of experience in the business. We don't just build our products – we own patents on them. And we don't just test our products – we push them to the extreme. If our product can't make it through torturous testing, you'll never see it in your home. It’s that kind of reliability that’s earned us America’s Most Trusted HVAC System*, three years in a row by Lifestory Research. The heating and cooling systems are built to withstand even the toughest environments. At Trane, we design, test, build and rebuild some of our own parts. We push them beyond industry standards, making sure they match the quality and innovation people expect when they own a Trane. Each detail is expertly designed and rigorously tested. Portland, the largest city in Oregon and seat of Multnomah County, is located in the northwest part of the state on the Willamette River. It is alsoknown as City of Roses, Rose City, Bridgetown, Rip City, Stumptown. Lewis and Clark camped at the site of Portland in 1805 on their expedition across the continent. Portland was founded in 1845 and was almost called Boston after the city in Massachusetts. Founders Amos Lovejoy from Massachusetts and Francis Pettygrove from Maine flipped a coin to decide the name of the new town. Pettygrove won the toss and named the place Portland after his hometown. Portland was incorporated as a city in 1851. In the 1850s Portland served as a supply base for the California gold rush, and it grew with the development of its salmon and lumber industries and the arrival of the railroad in 1883. The city continued to grow from 1879 to 1900 as a supply point for the Alaska gold rush and as the site of the Lewis and Clark Centennial Exposition in 1905. The port of Portland leads the West in grain exports and is among the top five auto-import centers in the United States. Heating, ventilation, and air conditioning is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, on ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors. Ventilating or ventilation is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Aircon, heat gain, exchanged air, duct damper, electric furnace, overheating, reliance home comfort, resistive heating, ventilation, saturation temperature, home air conditioner, heating medium, removal of moisture, install air conditioner, removes humidity, airconditioned, allergens cleaning, balanced temperature, Trane, air cleaning products, climate conditions, heat transfer.