Even in environments where extra protection is needed, ENS can help. Our systems can be used as a recirculation unit, meaning indoor air’s continuous cleaning. This treats indoor air several times, reducing the number of harmful particles, such as (ultra) fine dust, soot, pollen and other allergens, to virtually zero. For other heavily used areas, such as schools, museums and offices, systems are available with different sizes. Even in situations with a pollution source, such as a kitchen or a place where smoking is allowed, the ENS technology provides a solution to actively retrieve the air where the contamination is located.