First. You need to define the tipe of instrumentals to desinfect use the Spalding Clasification. Whit this you define if you can use CIDEX OPA to desinfect it or need to be resterilized. CIDEX OPA just desinfect no sterilize. Check CDC and OSHA. ADitional if you use CIDEX OPA need to use the test strip to asure the quality of the product.