Nuo Leng's brand new air duct machine can process outdoor air to a state close to indoor air, and then deliver it to indoor air. It has a cooling capacity of 10KW-156KW and a fresh air volume of 700-15600M3/H. Suitable for ambient temperatures of -15 ℃ -55 ℃, providing fresh air of 15~28 ℃ for various places throughout the year.