Sanat Prozheh Toos (Science-Based) was founded in 2006. Its main specialty is designing, manufacturing industrial noise pollution control equipment, and giving professional advice in this field. One of the most important acoustic products of the company is in-line silencers for controlling the flow noise in CGSs and TBSs, which has been the result of extensive scientific and experimental research. Furthermore, this company designs and manufactures acoustic insulations and coatings, acoustic chambers, exhaust silencers, ventilation silencers, fan silencers, and vent silencers and provides clients with thorough technical documentation based on their interests, needs, and orders.