Compressed air with dust and particulate impurities including water and oil. These impurities can cause problems on the compressed air or the consumer machines. Depending on the application, it is necessary to improve the quality of compressed air to remove impurities and contaminants are separated and that this action is performed by the filter. Given the size of the selectivity filter particles from 3 to 0.01 microns by the absorption and separation of compressed air to clean up pollution in accordance with EN ISO 8573 be prepared Vary.