What Does The Difference Between 99.9% and 99.999% Kill on a Label Mean?

Have you ever wondered what 99.9 and 99.999% on antibacterial cleaner label mean?

If you look at any bottle of antibacterial, disinfectant or sanitiser, you will see '99.9% Bacteria & Viruses Killed' or 'Proven to kill 99.999% of germs and bacteria' on the label. What does this mean?

For the latter statement to be applied, the product has been tested and passes BS EN 1276: Proof of bactericidal efficacy. It is a laboratory suspension test that tests the effectiveness of a product at killing bacteria in a test tube. For a pass, the product must kill 99.999% of bacteria within 5 minutes; this is evaluated by counting live cells under a microscope.

How does this affect your choice of disinfectant? Look at our infographic to see the difference.

EN1276 Comparison Infographic
As you can see, household products shouldn't be used within a commercial setting, unless they can prove BS EN 1276. To make things simple, all disinfectants sold by Wray Bros passes this test. If you need more help and advice contact us at [email protected]