Greenhouse planting is an important branch of modern agriculture. One of the biggest challenges of greenhouse planting is to create and maintain a stable and consistent environment for plant growth. Without a reliable climate, the growth of plants is often unsatisfactory. Once losing control of the environment, plants will have more serious problems: powdery mildew and gray mold, commonly known as bud rot. Any of these problems can disrupt growth and lead to property losses. The three most important aspects of humidity control and dehumidification in greenhouse or hydroponic planting are the proper size, reasonable location, and airflow. Preair's PRO series of dehumidifiers came into being, allowing flexible and customization options to solve all three problems. PRO series of dehumidifiers are made for the greenhouse, grow room and grow tent. Preair’s greenhouse dehumidifiers can achieve accurate humidity control, hidden installation and remote control by mobile phone. sealed grow room dehumidifier, Dehumidifier 110 Pint , Commercial Condensate Dryer , Self Draining Crawl Space Dehumidifier ,Crawl Dehumidifier . An industrial dehumidifier is applicable to a large area. A single dehumidification area of the dehumidifier is from 200 to 1200 square meters. Patented technology, strong dehumidification, high efficiency and energy saving are significant advantages of Preair industrial dehumidifiers. The product will supply to all over the world, such as Europe, America, Australia,New Zealand, Jakarta,UK, Chicago.Smart ecological city is a good combination of ecology and intelligence. The smart ecological city can be built on the principles of ecology, information technology, smart applications, which is dedicated to realize the coexistence of human, nature and environment and the sustainable development of livable cities.