Germiest Places

Use of NSF consulting services or attending NSF training sessions does not provide an advantage, nor is it linked in any way to the granting of certification.

Germiest Items in Public Places
As part of NSF’s ongoing Scrub Club®️ handwashing public service campaign, our microbiologists set out to find out where germs hide in schools and other public places.
Germiest Items in the Home
NSF conducted a "Germiest Places in the Home" study to identify germ hot spots in the home.
College Germ Study
NSF scientists tested the homes of college-aged students looking for the presence of major germ groups.
Germiest Places at Schools
This study determined determine what educators and school cleaning crews need to be on the lookout for when protecting kids from germs.
The Most Germ-Filled Hot Spots in Public Places - and How to Protect Yourself
As flu season continues, are you unsure about what’s okay to do and where it’s safe to go? Our experts offer tips on how to protect yourself.
Clean the Germiest Kitchen Items
NSF scientists studied whether consumers are actually following manufacturer instructions for cleaning appliances and kitchen products.
Clean the Germiest Home Items
If you thought that your bathroom was the germiest place in your home, think again. The study revealed that the top hot spots in the home were in the kitchen.
Uncovering the Germiest Places in the Home To Create a Clean and Vibrant Future
Find out what consumers think are the germiest spots and what our experts want you to know about cleaning them.

What Is NSF Certification?

Millions of people take the safety of their food, water and consumer products for granted. Why? Because of three letters: NSF. Our certification ensures products meet strict public health standards.

Germiest Places

Germiest Items in Public Places

Germiest Items in the Home

College Germ Study

Germiest Places at Schools

The Most Germ-Filled Hot Spots in Public Places - and How to Protect Yourself

Clean the Germiest Kitchen Items

Clean the Germiest Home Items

Uncovering the Germiest Places in the Home To Create a Clean and Vibrant Future

What Is NSF Certification?