What is the Difference Between Log Claims
The logarithmic scale works with factors of 10 (one decimal point), meaning log reductions (or the decrease in pathogens) are separated by factors of 10, with each additional factor increasing the. reduction of the number of live bacteria by 90%. For instance, according to the Environmental Protection Agency (EPA), log reduction as a percentage reduction alone looks something like this:
When applied to a colony of one million C. diff bacteria, kill rates translate to the following:
Log Reduction
- 1-log reduction = 90% reduction
- 2-log reduction = 99% reduction
- 3-log reduction = 99.9% reduction
- 4-log reduction = 99.99% reduction
- 5-log reduction = 99.999% reduction
- 6-log reduction = 99.9999% reduction
Log Kill
- A 1-log kill reduces the colony to 100,000
- A 2-log kill reduces the colony to 10,000
- A 3-log kill reduces the colony to 1,000
- A 4-log kill reduces the colony to 100
- A 5-log kill reduces the colony to 10
- A 6-log kill reduces the colony to 1
Truth in Labelling: Look for the EPA Registration Number
HaloMist is the only disinfectant aerosol that can make a 6-log claim to kill Clostridioides difficile (C. diff) spores, providing total room, hard surface disinfection. HaloMist’s 6-log claim means that 99.9999% of C. diff spores are killed on all non-porous surfaces in the room where HaloMist is fogged.
