Multi-stage filter holder boxes

A multi-stage filter housing is a component used in filtration systems to retain particles and contaminants in multiple stages. It consists of a box or casing that houses several filters with different characteristics and filtration levels. Each stage of the portafilter is designed to retain particles of different sizes and types, allowing for more efficient and complete filtration. The use of a multi-stage filter housing helps improve air quality and purity by reducing the presence of impurities and contaminants at different filtration levels.