Ecowool Fibreglass is designed for HVAC applications that require a stronger duct construction due to higher air pressure. It is specifically designed for thermal and acoustical insulation for HVAC application. It is used in heating, ventilation, and air conditioning to deliver and remove air. These needed airflows include, for example, supply air, return air, and exhaust air. It also deliver, most commonly as part of the supply air, ventilation air. As such, using our Ecowool Fibreglass is one method of ensuring acceptable indoor air quality as well as thermal comfort.