The disinfectants proven to kill norovirus are chlorine bleach at 1,000–5,000 ppm and EPA-registered products with a norovirus claim on the label.
For the full breakdown, see our best Disinfectant for Norovirus guide.
Norovirus can linger on hard surfaces for days, and many all-purpose sprays were never tested against it. When someone in the house is sick and you’re asking what disinfectant kills norovirus, the answer comes down to two real options: chlorine bleach mixed to the strength on its label, or an EPA-registered disinfectant that lists norovirus as a kill claim.
The CDC points to the same two categories after vomit or diarrhea cleanup, so the distinction matters.
Disinfectants That Kill Norovirus: What The EPA List Covers
Only products with an EPA-registered claim against norovirus, the kind collected on EPA List G, should be trusted to kill it. The ingredient class alone does not tell you whether a given spray works.
EPA maintains List G, its registry of registered antimicrobial products effective against norovirus. Norovirus claims are usually earned through testing against feline calicivirus, a harder-to-kill surrogate the EPA accepts on labels, so a product that lists feline calicivirus also counts as a norovirus disinfectant.
| Disinfectant Type | Kills Norovirus? | What The Label Must Show |
|---|---|---|
| Sodium hypochlorite (bleach) | Yes — the CDC’s most direct recommendation. | Disinfecting dilution and contact time; EPA-registered or outbreak-use label directions. |
| Hydrogen peroxide | Yes, for specific products on EPA lists. | Name norovirus or feline calicivirus. |
| Quaternary ammonium (quats) | Only some products. | Explicit norovirus claim; many quat wipes lack one. |
| Citric acid | Yes, for specific products. | Name norovirus or feline calicivirus. |
| Alcohol-based formulas | Only select products. | Label must include norovirus or feline calicivirus. |
Read the active ingredient less and the label claims more.
The Right Way To Disinfect After Vomit Or Diarrhea
- Put on disposable gloves before touching anything in the contaminated area.
- Wipe up as much vomit or diarrhea as possible with paper towels and toss them in a sealed trash bag.
- Disinfect the surface. For chlorine bleach, the CDC recommends a fresh solution at 1,000–5,000 ppm left in place for at least 5 minutes. For an EPA-registered norovirus disinfectant, follow the label’s concentration and dwell time exactly.
Visible mess interferes with disinfection, which is why the first step is removal, not spraying. Bleach also damages some materials, so confirm the surface is compatible before you use it.
Why Doesn’t Every “Disinfectant” Kill Norovirus?
Norovirus is unusually hard to kill, so only formulations actually tested against it can legally claim it. An EPA registration is claim-specific, meaning a product tested against staph or flu viruses gets a label that says exactly that and nothing more.
That is where most cleaning mistakes happen. Here is what to look for before trusting any product:
- The word “norovirus” must appear on the label — or feline calicivirus, which EPA treats as its stand-in.
- Respect the contact time. EPA List G entries vary from about 1 minute to 10 minutes or more depending on the formulation.
- Keep the surface wet for the whole dwell time. A spray that dries in 30 seconds has not done its job.
The final rule is simple: chlorine bleach at the right strength for surfaces that tolerate it, or an EPA-registered norovirus disinfectant used at its stated contact time. Skip anything that does not check one of those boxes.
FAQs
Does Regular Household Bleach Kill Norovirus?
Yes, when it is chlorine bleach mixed to a disinfecting dilution. The CDC recommends a solution in the 1,000–5,000 ppm range for surfaces after vomit or diarrhea, with at least 5 minutes of contact time. Check the label first, since splashless, scented, and non-chlorine bleaches may not be suitable for disinfecting.
Do Disinfecting Wipes Kill Norovirus?
Only wipes whose labels specifically name norovirus or feline calicivirus. Look for the claim in the kill list, then follow the printed contact time.
Does Hand Sanitizer Kill Norovirus?
Not reliably. Handwashing with soap and water is the preferred method after norovirus exposure, and alcohol-based hand sanitizers are not a substitute during an outbreak. Wash thoroughly after cleanup, because the virus spreads easily from hands to surfaces and back.
References & Sources
- U.S. Environmental Protection Agency. “EPA’s Registered Antimicrobial Products Effective Against Norovirus (List G).” Official registry of disinfectants with norovirus claims.
- Centers for Disease Control and Prevention. “How to Prevent Norovirus.” Covers surface cleanup, bleach strength, and contact time.
- Centers for Disease Control and Prevention. “Norovirus Guidelines: VIII. Evidence Review.” Reviews disinfectant effectiveness and cleaning requirements.