Easy-to-use, disposable swabs will work on any surface, instantly turning red when lead is present. Simple to use: just crush, shake, and swab. Red Means Lead. There are no hidden steps or lengthy procedures. The entire test procedure is so convenient that it can be performed anywhere in 30 seconds. LeadCheck swabs are odorless, disposable, and nonstaining. There's even a test confirmation card to verify test results. EPA (Environmental Protection Agency) recognizes the LeadCheck lead test kit when used by a certified renovator. Protect your workers or by-standers and minimize your liability by testing painted and stained surfaces, vinyl, plastics and dust.