Humidity cabinets are meant to replicate high humidity test conditions at constant or cycling temperatures, as required by modern industry.It is designed to assess the impact of certain environmental conditions on biological things, industrial products, minerals, and electronic devices and components by imitating climatic circumstances, including extreme ambient conditions, to which the various test components may be exposed.

Humidity chambers are used to test the impact of various conditions on products in order to determine how long they will last and when they will fail. Engineers can use the information to improve their designs and choose more durable materials.This is especially useful to manufacturers whose products are covered by a guarantee or warranty, as a product that has already been tested and improved is less likely to result in significant reimbursement payments. While high humidity is the most prevalent source of damage, products meant for an outdoor environment are likely to be exposed to greater amounts of dust and/or sand in low humidity areas, so it may be prudent for a manufacturer to do environmental tests for those conditions.