Appliance brand. According to the query Gree official website, Gree Full Roof is an intelligent whole-house solution home appliance brand launched by China's famous home appliance brand Gree Electric Appliances, which collects Gree's technological advantages in the fields of air conditioning, fresh air, water purification, purification, etc., and realizes intelligent control and management through the Internet, the Internet of Things, big data and other technological means.