A quick and easy way to accurately monitor the cleanliness of instrument surfaces to help ensure patient safety. Medi-Check detects protein residues left on a surface after cleaning. Simply swab a surface, release the reagent and if blood residue is present the reagent will turn purple. The more contamination present, the quicker the colour change to purple and the darker the colour. Validates the hygiene of a surface on surgical and dental instruments, allowing immediate corrective action to be taken if necessary.