The space for packaging and printing operations is usually very large. In hot weather, buildings are susceptible to dryness and heat in the indoor environment due to exposure to heat. In addition, the heat dissipation effects of production equipment and workers have the problem of poor indoor air circulation. The general small fan can only improve the local area. Installing the large Keller fan can realize the overall circulation of the air in the workshop. The high-volume and three-dimensional wind can achieve a full range of air flow to achieve the purpose of cooling the human body and effectively ventilating the environment. This promotes production capacity and indirectly improves employee productivity.

The space for packaging and printing operations is usually very large. In hot weather, buildings are susceptible to dryness and heat in the indoor environment due to exposure to heat. In addition, the heat dissipation effects of production equipment and workers have the problem of poor indoor air circulation. The general small fan can only improve the local area. Installing the large Keller fan can realize the overall circulation of the air in the workshop. The high-volume and three-dimensional wind can achieve a full range of air flow to achieve the purpose of cooling the human body and effectively ventilating the environment. This promotes production capacity and indirectly improves employee productivity.