Duct Housing Nuclear Equipment Product Overview AAF duct housing is a safe and robust filter that can be fitted onto the air intake system, several filtration stages can be integrated.The duct Housing is certified ISO 10648 furthermore our AAF complies with a series of standards:NF M62-200EUROVENTEN 1886EN 5817 Benefits & Features Modular designReliable welded constructionHigh filtration efficiencyLong service life Contact Us