If a product label states 'complete immersion', which use is NOT allowed?

• A. Disinfect by Spraying
• B. Disinfect by Immersion
• C. Soak Items
• D. Wipe on Surfaces

Answer: (A)

Complete immersion means the product is intended to contact every surface by fully submerging the item in the solution for the required contact time. That makes disinfection by immersion or soaking items appropriate uses. Spraying, however, applies the product as a mist and won’t guarantee full surface contact or the necessary exposure time, and it can create aerosols or spread the product beyond the intended area—both of which violate an immersion-only instruction. Wiping on surfaces also doesn’t align with immersion since it relies on surface contact without submersion, unless the label explicitly allows it. So the use that does not fit an immersion-labeled product is disinfecting by spraying.