What ratio does the CDC recommend for a bleach solution used as a decontaminant?

The CDC recommends a bleach solution with a ratio of 1:10 for effective disinfection and decontamination purposes. This concentration is specifically aimed at ensuring that surfaces are adequately disinfected while being safe for most surfaces in various environments. A 1:10 ratio means one part bleach to ten parts water, resulting in a solution that is strong enough to eliminate pathogens but not so concentrated that it poses a significant risk of damage or health hazards when used properly.

Using this recommended dilution helps in achieving optimal efficacy against a broad range of microorganisms, including viruses and bacteria, which is critical in settings such as healthcare facilities, schools, and even home environments where cleanliness and infection control are paramount. Maintaining appropriate ratios is essential for safety and effectiveness, hence the prominence of this specific recommendation.