LeadCheck swabs are an easy and non-toxic way to test for lead-based paint, delivering clear results in less than 30 seconds with a simple color change - red means lead. Just crush, shake, and swab, with confirmation cards included to verify each test. EPA recognizes that when used by a Certified Renovator, the Luxfer Magtech LeadCheck lead test kit can reliably determine that regulated lead-based paint is not present on wood, ferrous metal, or drywall and plaster surfaces. The 2-pack is ideal for quick spot checks or small projects.