Industrial filters are commonly used as air pollution control devices to protect or improve air quality. Porous filters are made of materials with small pores to filter and purify water. Ceramic filters are often cylindrical with small holes resembling candlesticks and are made of materials such as clay, porous stone, or soil. Additionally, cyclones are devices that rapidly rotate air, creating a storm-like effect, which helps reduce air pollution to some extent. Bag filters, on the other hand, contain dust particles and molecules in a bag, effectively trapping them and allowing for the disposal of accumulated dust and dirt, making them reusable.

Dust collectors can be single structures or devices used to separate particulate matter from process air. They are commonly used as air pollution control devices to protect or improve air quality. By preventing direct contact of airborne dust and particles, they serve as a protective shield against air pollution. A filter is a device that reduces water pollution by acting as a fine physical barrier, employing chemical processes, or utilizing biological mechanisms to remove impurities. Filters are used in various applications to clean water, such as providing agricultural irrigation, supplying accessible drinking water, maintaining the safety of general and specialized aquariums, and ensuring the proper use of pools and swimming pools. They effectively eliminate microorganisms in water, making it cleaner and purer.