Commercial greenhouses are typically high-tech structures dedicated to the horticultural needs of plants, where environmental properties such as temperature, light exposure, irrigation, fertilization, humidity, and ventilation can be controlled for optimal crop growth.

Over the past decade, the world greenhouse industry has grown tremendously.  This increase is driven by the need for higher indoor production due to limited land, water, and labor.  It is crucial that commercial greenhouse managers are on the leading edge of production and operations within their facilities, understanding that their plants require constant attention and careful management to thrive.

There are normally 3 ways to achieve ideal climate control within the greenhouse:

1. Natural ventilation: there are scrolling up sidewalls or open roof in the greenhouse for ventilation, the fresh cold air comes through the sidewall opennings of the greenhouse, then the heated air rises up in the greenhouse and vent out though the roof openning.Fresh air exchange can help to bring down the temperature inside the greenhouse.
2. Fan and Evaporative Cooling Pad System: installing evaporation cooling walls in one side of the greenhouse, and install the negative pressure exhaust fans on the opposite side of the greenhouse, it is the most cost-effective way to bring down the temperature inside the greenhouse in hot summer. In most of cases, the evaporative cooling pads with exhaust fans combination can help to bring down the temperature by 4 to 8 degrees.
3. Ventilation exhaust fans and Circulation Fans: Installing box type or cone type exhaust fans in the wall of the greenhouse, and hang the circulation fans under the roof of the greenhouse, this way is similar to the first natural ventilation, but the air exchange speed is much higher due to the ventilation of the exhaust fans and circulation fans.