A plant factory is a facility that precisely controls the internal environment to allow year-round and systematic culture of plants, such as vegetables. Plant factories are now said to be in the third boom. Along with increasing awareness among consumers, vegetables produced in plant factories are catching on in the market.
The closed plant factory with artificial lighting is a closed system with high cleanliness, which enables highly controlled cultivation environment, suitable for the production of high value-added plants. This article focuses on the closed plant factory with artificial lighting and introduces the culture environment for plants and the outline of the control and cleaning technologies.