What is a Log Kill?

When you are dealing with biohazard cleanups of dangerous bacteria and viruses, you want to make sure that whatever decontamination product is being used is able to kill as many viruses and bacteria as possible.  One way you can measure the effectiveness of a decontaminate is to compare the “log kill rate.” A log kill rate denotes how many pathogens are killed by a certain substance.

What is a log kill rate?

A log kill rate tells you what percentage of bacteria or viruses are killed by a particular substance. To figure out the rate, scientists count the bacteria before and after the substance is applied and is expressed as a whole number 0-6.

To understand the rates, consider when a number is taken to a higher power. For example:

10 x 10 x 10 = 1,000 is denoted as 103

A log kill rate is the opposite of taking a number to a higher power. In this case, instead of multiplying an amount we divide the number that many times according to the number of log kills or, in other words, move the decimal by one place for every log kill. For example, if we start with 1,000,000 C. Diff bacteria and use a sanitizing substance with a log kill rate of 1, we divide by 10 once to kill 90% of the bacteria but we still have 100,000 bacteria when we’re done. If we have a log rate of 2, we divide by ten then divide by ten again to only have 10,000 bacteria. Thus, the higher the log rate, the more effective a solution will be. Using this methodology, the log kill rates are as follows:

Log Kill RateNumber of Bacteria LeftPercentage Killed


Georgia Clean uses decontamination products with the best log kill rate

Here at Georgia Clean, we use Tomi Steramist, which is among the best decontamination products with the highest log kill rate of 6.  You can be confident as many bacteria and viruses are killed as possible and the area is safe to use. Thoroughly trained with years of experience, our team know how to professionally apply the decontaminate to be the most effective against the threat and how to protect ourselves while doing so.

If you’re dealing with cleaning up biohazards like bodily fluids or diseases, make sure the decontaminate being used is rated as close to six as possible and that the chemicals are being properly applied by trained professionals for greatest effectiveness. Buying less effective chemicals or applying them yourself is taking a huge risk.  Your health and the health of your loved ones is worth making sure the job is done right.

SteraMist: Georgia Clean’s Choice for Decontamination

When it comes to biohazard cleanup techniques, we are constantly researching the latest technology available in order to ensure that we offer the best possible service to you and that, when we are done cleaning your Georgia home or business, you and your family are truly safe from all hazards.

In this spirit, we are excited to share with you our new choice for the most effective decontamination tool on the market called SteraMist. SteraMist was originally created by the Defense Advanced Research Projects Agency to fight Anthrax attacks. Now that it has been approved for use by the Environmental Protection Agency (EPA), it is the very best tool in our arsenal to rid your home of bacteria, mold, and viruses on contact.

How does SteraMist work?

SteraMist uses a 7.8% concentration of Hydrogen Peroxide that is then ionized by Binary Ionization Technology. This transforms the solution to mostly hydroxyl radicals which kills 99.9999% of viruses, bacteria and mold. For more details, check SteraMist’s website.

What are the benefits of SteraMist?

SteraMist deactivates viruses, bacteria, and mold spores and mitigates the spread of disease. With a steady and even coverage, SteraMist:

  • treats the whole room: When sprayed, SteraMist treats the entire room, large or small and only requires a fast application.
  • requires no wiping or rinsing and leaves no residues: Once applied, SteraMist leaves no residues and doesn’t need anything wiped or rinsed.
  • spreads throughout an area: As it’s sprayed onto a surface, SteraMist spreads throughout an area including around, under, and into objects as well as in drawers.
  • evenly distributes: No matter how far from the source of the spray, the solution stays just as effective as it travels.
  • is safe for children and pets: Used in hospitals, schools, daycares, kennels, and homes, SteraMist is safe for your kids and your pets.
  • won’t affect electronics: All electronics are safe and won’t be affected by the solution.
  • contains no bleach or chlorine: SteraMist contains no harmful bleach or bacteria and is environmentally friendly.
  • has been proven effective by the Environmental Protection Agency: SteraMist has been put through rigorous testing by the EPA to ensure its effectiveness and has been formally approved as a hospital-grade disinfection system to eradicate viruses, bacteria, mold, and “superbugs” in an indoor environment.

Any questions?

If you have any questions about SteraMist or how we can use it to decontaminate your Georgia home or business, give us a call at 770-766-4562 and we’ll be happy to talk with you.