AllerSnap accurately monitors the cleanliness of surfaces to help ensure product quality by detecting protein residues left on a surface after cleaning. Simply swab a surface, release the reagent, incubate, and if protein residue is present, the reagent will turn purple. The color change provides a semi-quantitative measure of surface cleanliness. More contamination produces a quicker and darker color change to purple. AllerSnap rapidly validates the hygiene of a surface, allowing immediate corrective action to be taken if necessary