The HiVol 3000 XAD model, manufactured by Ecotech, is an ambient air sampler which provides reliable sampling of organic compounds on a Hydrophobic Polyaromatic resin. The tool is the same to a PUF sampler but caters to a wider range of organic compounds. Moreover, it is used for fenceline sampling and can operate with a maximum capacity of 10 to 15 m³/hr.