Gm Series biogas blowers from Aerzen USA are specially designed for the biogas market, ensuring reliability and efficiency. They are available in a variety of different sizes with intake volume flows of 35 to 1,500 icfm and positive pressure up to 15 psig. They are used for the compression of biomethane and biogas, landfill gas, and natural gas. 610/380-0244; www.aerzenusa.com; Booth #441.