Can I disinfect surfaces with drugstore hydrogen peroxide or rubbing alcohol?

Not by the label. The brown bottle of 3 percent hydrogen peroxide and the bottle of rubbing alcohol in a medicine cabinet are sold as first aid antiseptics, drugs regulated by the FDA for minor cuts, scrapes and burns [1]. Their labels carry no directions for surfaces and no contact time. Hydrogen peroxide, ethanol and isopropyl alcohol are, however, active ingredients in some EPA-registered surface disinfectants, and those products do carry tested directions [2]. If you want to disinfect with one of these chemicals, buy the registered product and follow its label. This page sets the two kinds of bottle side by side and explains the flammability risk with alcohol.

Two bottles, two regulators

The chemical in the two bottles may be the same. What differs is the evidence and the instructions. The drugstore label was written for skin; nothing on it tells you how much to use on a counter, how long to leave it, or which germs it works against there.

What the research on these chemicals says

CDC's Guideline for Disinfection and Sterilization in Healthcare Facilities (2008) reviews both chemicals for hospital use. Its findings show why the details on a registered label matter.

Alcohol. The guideline gives the optimum bactericidal concentration as 60 to 90 percent alcohol in water, by volume [7]. It also says alcohols "evaporate rapidly, making extended exposure time difficult to achieve unless the items are immersed," and that they "lack sporicidal action" [7]. A surface sprayed with alcohol can dry before any contact time is reached, which is the problem described on contact time. Whether 70 or 91 percent rubbing alcohol is better for cleaning glass is a different question, answered on rubbing alcohol.

Hydrogen peroxide. The guideline says hydrogen peroxide "is active against a wide range of microorganisms" and that commercially available 3 percent hydrogen peroxide "is a stable and effective disinfectant when used on inanimate surfaces" [7]. It also reports that thirty minutes were required for more than 99.9 percent inactivation of poliovirus and hepatitis A virus, and that 3 percent and 6 percent hydrogen peroxide "were unable to inactivate HAV in 1 minute in a carrier test" [7].

Read together, the guideline describes chemicals that work against some organisms under some conditions, and that can need much longer than a quick wipe. That is precisely the information a drugstore bottle does not give you and a registered label does. A healthcare guideline written for hospital staff choosing products is also not a set of home directions. This page does not turn it into one.

Alcohol is flammable

FDA requires alcohol and isopropyl alcohol antiseptics to carry the warning "Flammable, keep away from fire or flame" [1], and CDC's guideline says alcohols "are flammable and consequently must be stored in a cool, well-ventilated area" [7]. In practice:

• Do not spray alcohol near a gas burner, pilot light, candle, space heater or a lit cigarette.
• Do not spray a large area in a closed room. The vapor builds up as it evaporates.
• Let it evaporate completely before turning on an appliance you have wiped.
• Store the bottle closed, away from heat, and out of reach of children.

How alcohol is classed as a flammable substance for labeling, if you sell a product containing it, is on does my product need FHSA warnings?.

Do not mix either one

Both chemicals have dangerous partners:

• Rubbing alcohol or hand sanitizer with bleach forms chloroform, according to the New Jersey Department of Health. See bleach and rubbing alcohol.
• Hydrogen peroxide with vinegar forms peracetic acid, which is corrosive. Do not combine them in one bottle. See hydrogen peroxide and vinegar.
• Hydrogen peroxide with bleach is on the never-mix list too. The full list is on cleaners you should never mix.

If someone breathes fumes from a mixture, gets either chemical in their eyes or swallows some, call Poison Control at 1-800-222-1222. See someone got cleaner in their eyes or swallowed some.

Finding a registered peroxide or alcohol disinfectant

EPA's List N, its list of products registered against the virus that causes COVID-19, can be searched by active ingredient, and hydrogen peroxide, ethanol, isopropanol and thymol are among the actives you can select [2]. It can also be filtered by surface type (hard nonporous, porous, food contact with or without a rinse), use site (residential, institutional, healthcare) and contact time, from 1 minute or less up to 30 minutes [2].

When you have a candidate, read three things on its label before buying:

1. The active ingredient and its percentage. This is the concentration the product was registered at. Do not dilute it further unless the label tells you to [8].
2. The contact time for the organism and surface you care about.
3. The surfaces and use sites. A product registered for hard, nonporous surfaces says nothing about fabric or wood.

Choosing and reading a registered disinfectant explains the rest of the label and how to look up a registration number.

If you make or sell a cleaner with these ingredients

Using rubbing alcohol in a homemade glass cleaner or 3 percent peroxide as a stain remover is a cleaning use. Calling the result a disinfectant or sanitizer is not. That would be a pesticidal claim requiring EPA registration [9], and a minimum risk product under FIFRA 25(b) may not claim to control any microorganism, so 25(b) does not cover germ claims [10]. Peroxide also loses strength once opened; see does hydrogen peroxide lose strength once I open it?.

Reading the label of the product you buy

The registered bottle is only as good as the directions you follow. Registration numbers, organism lists, surfaces and rinse instructions are explained on choosing and reading a registered disinfectant.

References

1. U.S. FDA, OTC Monograph M003: First Aid Antiseptic Drug Products for Over-the-Counter Human Use, posted May 2, 2023. https://www.accessdata.fda.gov/drugsatfda_docs/omuf/monographs/OTC%20Monograph_M003-First%20Aid%20Antiseptic%20products%20for%20OTC%20Human%20Use.pdf
2. U.S. EPA, List N Tool: COVID-19 Disinfectants, last updated September 15, 2026. https://www.epa.gov/pesticide-registration/list-n-tool-covid-19-disinfectants
3. U.S. EPA, What Are Antimicrobial Pesticides?, last updated January 29, 2026. https://www.epa.gov/pesticide-registration/what-are-antimicrobial-pesticides
4. U.S. EPA, Selected EPA-Registered Disinfectants, last updated August 24, 2026. https://www.epa.gov/pesticide-registration/selected-epa-registered-disinfectants
5. U.S. EPA, Can I use common household substances to kill the novel coronavirus?, last updated July 28, 2026. https://www.epa.gov/coronavirus-and-disinfectants/can-i-use-common-household-substances-kill-novel-coronavirus
6. U.S. EPA, Efficacy Requirements for Antimicrobial Pesticides, last updated September 29, 2026. https://www.epa.gov/pesticide-registration/efficacy-requirements-antimicrobial-pesticides
7. CDC, Chemical Disinfectants, Guideline for Disinfection and Sterilization in Healthcare Facilities (2008), page last updated November 28, 2023. https://cdc.gov/infection-control/hcp/disinfection-sterilization/chemical-disinfectants.html
8. U.S. EPA, Cleaning and Disinfecting factsheet, April 2021. https://www.epa.gov/sites/default/files/2021-04/documents/cleaning-disinfecting-one-pager.pdf
9. U.S. EPA, Determining If a Cleaning Product Is a Pesticide Under FIFRA, last updated July 6, 2026. https://www.epa.gov/pesticide-registration/determining-if-cleaning-product-pesticide-under-fifra
10. U.S. EPA, Conditions for Minimum Risk Pesticides, last updated August 31, 2026. https://www.epa.gov/node/64449