👉 An aspirer is a device used to collect air pollutants or other contaminants from various sources, such as factories, power plants, and vehicles. They are typically attached to an air purifier or a separate unit that filters out these pollutants before they are discharged into the environment. Aspirers can be of different types based on their design, including: 1. Portable: These units are typically smaller in size than traditional air purifiers and allow for easy installation and use. 2. Fixed: They are