Environmental supplies refer to various products and equipment used in environmental testing, monitoring, and protection. These supplies include but are not limited to air and water sampling equipment, field-testing kits, environmental meters, and personal protective equipment. They are used by environmental professionals, such as ecologists, environmental scientists, and engineers, to study, manage, and protect natural resources, ecosystems, and public health. Some common environmental supplies are pH meters, dissolved oxygen meters, gas detectors, sediment samplers, and soil testing kits. The use of environmental supplies is critical in ensuring compliance with environmental regulations and reducing the negative impact of human activities on the environment.