A post last week for an all-purpose cleaner recipe that uses hydrogen peroxide as a key ingredient seems to have left a few questions about safety and how to use this solution. So here are a few facts drawn from the medical safety data sheet and other sources.
- The regular variety 3% hydrogen peroxide solution is ideal for household use, and should be available at your drugstore. Stronger commercial grade concentrations can be dangerous.
- Hydrogen peroxide should be stored in a dark container in a cool place. Exposure to light, air, and heat cause it to break down rapidly into water and oxygen. So if you plan to use hydrogen peroxide as a household cleaner, use it as quickly as possible.
- Hydrogen peroxide is a disinfectant that can be used to kill bacteria, mold, and even salmonella. It is also a bleaching agent, so if you are using it on wood of fabric make sure to try a test area first.
- Contact with eyes, or ingesting large amounts may cause irritation. Both exposures can be treated with water. There are no known adverse health effects caused by long-term exposure to hydrogen peroxide.
- At low concentrations, 3% or less, hydrogen peroxide is safe for humans and animals. But obviously, common sense should prevail.
For more information see the Hydrogen Peroxide Medical Safety Data Sheet.
Related Posts on Re-Nest:
- What Strength of Hydrogen Peroxide Should I Use?
- An Excellent Homemade 3-Ingredient All-Purpose Cleaner
- How To Whiten Laundry Without Chlorine Bleach
- Is Hydrogen Peroxide Bad for the Environment?
(Image: Emily Ho)


Sheex Bedding
Long time fan, first time commenter.
I bought a large bottle of hydrogen peroxide and a garden spray bottle at around the same time when I decided to go green in the kitchen earlier this year. The nozzle from the spray bottle fit directly onto the bottle of hydrogen peroxide, which I now keep below the kitchen sink.