The STAHLS' Hotronix Dual Air Fusion IQ (model 162908) is a professional heat press machine used for applying heat-transfer vinyl, sublimation transfers and other heat-applied graphics to garments and other substrates. "Dual Air" refers to its pneumatic dual-air-assist opening/closing mechanism, letting the operator swing or auto-open the heated platen with one hand while loading a garment — a feature aimed at high-throughput print shops rather than hobbyist use. Hotronix presses are known in the industry for precise digital temperature, pressure and time control (the "IQ" electronics). Bought by garment decorators, promotional-product businesses and print-on-demand operations doing t-shirts, jerseys and similar heat-transfer work at commercial volume.