polyurethane foam formaldehyde scavengers: enhancing indoor air quality contents introduction 1 background 2 the problem of formaldehyde in indoor air 3 polyurethane foam: a common source of formaldehyde 4 the need for formaldehyde scavengers polyurethane foam formaldehyde scavengers: an overview 1 definition and working principle 2 types of formaldehyde scavengers for pu foam 1 amine-based...