Based on the dual-carbon background and the requirements for smart construction and green practice, taking wearable used tobacco smoke absorber and purifier as research object, from the aspect of combining equipment functional design with low carbon development strategy, summarizes the main needs to be met by the second-hand smoke control at smart building site, and improves the function configuration and technical route of the purifier according to the low carbon design principle; the paper also discusses how to apply low carbon materials and energy saving technologies in the equipment design. providing a reference direction for improving intelligent construction environment management system towards low-carbon emission and high-intelligence level, whose results aim at promoting the synchronized development between on-site environment management and the industry’s green, low-carbon revolution.