What is the recommended dilution ratio for household bleach when used as a disinfectant?

The recommended dilution ratio for household bleach when used as a disinfectant is indeed 1:10. This ratio is effective for disinfection purposes as it provides a suitable concentration of sodium hypochlorite, which is the active ingredient in bleach. At this dilution, the bleach retains its potency to kill bacteria, viruses, and fungi, making it suitable for various surfaces, especially in environments where sanitation is critical.

When mixed at this ratio, the solution is strong enough to effectively sanitize surfaces without being so concentrated that it poses a risk of damage to the surfaces or hazards to health if used improperly. It’s essential to follow safety guidelines, such as using the solution in a well-ventilated area and avoiding direct skin contact.

In contrast, other dilution ratios either may not provide enough disinfection power or could be too strong and potentially harmful for safe use on surfaces. For instance, a ratio of 1:5 would be excessively concentrated, while ratios of 1:15 or 1:20 may dilute the disinfecting power of the bleach beyond effectiveness for sanitizing tasks.