A precipitator is a device used to remove particulates from a gas or liquid stream. There are many synonyms that can be used in place of precipitator, such as dust collector, particle separator, filter, and air cleaner. Other related terms include cyclone separator, electrostatic precipitator, and baghouse filter. The most appropriate term may depend on the specific application and requirements for particle removal. These devices are commonly used in industries such as power generation, cement production, and steel manufacturing to reduce emissions and improve air quality. They play a critical role in ensuring environmental compliance and maintaining public health.