They are air, calcium chloride brine, sodium chloride brine, alcohol, and similar nonfreezing solutions. The purpose of Class 2 refrigerants is to receive a reduction of temperature from Class 1 refrigerants and convey this lower temperature to the area to be air-conditioned.
Elections for the United States Senate will be held on November 8, 2016, with 34 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3, 2017 until January 3, 2023.
A Federal general election is held every even-numbered year on the first Tuesday after the first Monday in November. The 2016 federal general election will be held on November 8, 2016. Presidential elections are combined with the congressional, statewide, state district, and county elections.