Sanitizing vs. disinfecting vs. cleaning: What's the difference?

While they may seem like interchangeable terms on the job site, cleaning, disinfecting, and sanitizing have subtle differences with not-so-subtle implications. Any commercial surface can harbor visible and invisible contaminants, like dirt, grease, bacteria, and microbes. Cleaning means to remove these contaminants, disinfecting means to kill them, and sanitizing means to reduce pathogens to an established safe level.

Whether managing a facility or prepping a job site, keep harmful germs at bay by understanding the difference between each of these processes.

What is cleaning?

Cleaning means simply removing these contaminants from a surface. Chemical cleaners, like soap or detergent, loosen contaminants so they can be rinsed away easily with water.

While cleaning can reduce the number of harmful substances on a given surface, it does not directly address the problem of germs.

What is disinfecting?

Disinfecting, on the other hand, kills the germs that live on a surface but does not remove them. On the job, you can't disinfect a surface covered in grease, sludge, or pipe dope — that grime acts as a physical shield. The professional standard is to always clean the grime first, then disinfect the surface.

What is sanitizing?

Cleaning and disinfecting are often associated with sanitizing as well. Sanitizing involves reducing the amount of germs or other potentially harmful pathogens to a safe level. A surface can be sanitized through cleaning or disinfecting if the final results meet the safe levels determined by health and safety standards.

At a glance: cleaning vs. disinfecting vs. sanitizing

How to tell if you’re using a cleaner or disinfectant

Cleaners and disinfectants come in many different forms, and the sheer variety can make purchasing decisions difficult. Here’s how to know which one you’re using — and if you’re using it correctly.

Identifying a cleaner

Cleaners are formulated to break down dirt, oils, and soils rather than kill pathogens. You can spot a general cleaner by looking for key terms such as “detergent”, “surfactant”, “degreaser”, or “all-purpose cleaner”, along with action verbs describing how it lifts dirt and cuts grease. Because standard cleaners make no pathogen-killing claims, they do not carry an Environmental Protection Agency (EPA) registration number.

Application instructions are straightforward: apply, agitate or wipe, and rinse away without any required contact time.

Identifying a disinfectant

Disinfectants are chemical formulations designed specifically to destroy viruses, bacteria, and fungi. Because they are legally regulated as antimicrobial pesticides, a legitimate disinfectant bottle will always display an EPA registration number. The label also lists specific target microorganisms the chemical is proven to kill, such as salmonella or influenza.

Proper use also ensures proper disinfection. Many disinfectants include information on how long the product must remain on the surface to kill as many germs as possible. Review these instructions carefully to maximize the effectiveness of your disinfectant.

Pro Tip: The Centers for Disease Control recommends regularly cleaning and disinfecting high-touch surfaces like door handles and light switches. Public-use objects, like shopping carts, should be cleaned and disinfected before every use.

Can wipes be used to clean, disinfect, and sanitize?

There’s a variety of cleaning wipes available on the market, but not all wipes can be used for the same applications. Some wipes are made to disinfect surfaces, while other wipes are made for hands and skin. As with cleaners, consider the labels.

Disinfectant surface wipes are regulated by the EPA. Using an EPA-approved disinfecting wipe is a safe and effective way to kill germs on surfaces when used according to manufacturer directions but is not recommended for use on skin as this can cause irritation.

What are made for use on skin are sanitizing wipes. They’re specifically made for hands and are regulated by the Food and Drug Administration to safely kill germs on skin without irritation.

Protecting property, tools, and reputation

For trade professionals, knowing the difference between cleaning and disinfecting is not just about hygiene — it comes down to efficiency, safety, and avoiding costly callbacks. Reaching for the wrong chemical can create serious problems:

• Preventing surface damage: Harsh disinfectants, acids, or bleach applied to delicate finishes like natural marble, stone, or architectural stainless steel can etch, discolor, or pit the material. Using specialized cleaning chemicals — such as dedicated all-purpose cleaners or surface-safe bathroom cleaners — cleans away grime without ruining expensive fixtures.

• Protecting your tools: Strong disinfectant residues left on wrenches, cutters, or test equipment can corrode metal and degrade rubber grips over time. Removing heavy grease or pipe dope first with dedicated industrial degreasers keeps your gear running properly.

• Limiting jobsite liability: In commercial and institutional facilities, failing to properly sanitize or disinfect according to code can lead to compliance violations or health risks. Applying the right product in the right sequence ensures you meet inspection standards every time.

Ferguson can help with cleaning, sanitizing, and disinfecting

Whether you’re maintaining commercial facilities or keeping job sites safe, Ferguson has the professional-grade solutions you need. With a broad selection of cleaners and disinfectants in stock, we help pros cut through heavy buildup, meet health and safety standards, and keep facilities protected. Find what you need to stop the spread of harmful contaminants by shopping online at ferguson.com.