"Red Oak Indoor Climate Control System", English HTOP, is a set of high-tech indoor constant temperature, constant humidity, constant oxygen, constant cleaning and constant static system created by Red Oak Technology for the purpose of creating a healthy indoor microclimate. Relying on displacement ventilation technology, air purification technology, capillary cooling and heating technology, fresh air humidity control technology and intelligent control technology, it realizes manual intervention on indoor environmental climate and creates a high-quality healthy air environment for home, office and business places. There are no moving parts or fans in the room, so the system achieves 100% quiet operation.