Environmental chambers are used for a variety of experiments in multiple disciplines but are often prohibitively expensive. In this study, we developed an environmental chamber that allows reliable regulation of temperature and relative humidity in a range typical for warm climatic conditions. As we have only used consumer products, which are readily available off the shelf, the device is affordable (<€900) and easy to replicate. The presented chamber has inner dimensions of 1,790 × 970 × 520 mm (height × width × depth). It is heated with two infrared lamps, and for moistening, an ultrasonic mister is used. Air dehumidification and cooling down to ambient temperature are realized with inflowing compressed laboratory air. Additionally, we installed a Peltier element cooling system to enable temperatures below the ambient laboratory temperature. The chamber works in a temperature and humidity range of 15–50 °C and 10–95%, respectively.

中文翻译：

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低成本的环境箱可模拟温暖的气候条件

环境室用于多种学科的各种实验，但通常价格昂贵。在本研究中，我们开发了一个环境箱，可以在温暖的气候条件下的典型范围内可靠地调节温度和相对湿度。由于我们只使用了现成的消费产品，因此该设备价格合理（<900欧元）并且易于复制。所示腔室的内部尺寸为1,790×970×520 mm（高度×宽度×深度）。用两个红外灯加热，并使用超声波喷雾器进行润湿。空气的除湿和冷却到室温是通过流入压缩的实验室空气来实现的。此外，我们安装了Peltier元件冷却系统，以使温度低于实验室环境温度。