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The Top 5 Germiest Rooms in Schools

Did you know that viruses and bacteria on non-porous surfaces build up a resistance to liquid sanitizers and disinfectants over-time? If surfaces are not cleaned properly, viruses and pathogens could survive on them for weeks, even months. Traditional cleaning methods only provide a basic level of protection. In order to ensure a clean classroom, 24/7 sanitization is required. This is only possible through the cleansing power of air purifiers that generate hydroxyls and organic oxidants and disperse them into the air and across all surfaces.

As parents send their kids back to school, health and safety is a top priority because schools create the perfect environment for germ spread. Certain facilities in schools require extra special attention – especially high-traffic, poorly ventilated and humid environments where germs thrive. Here are the top five germiest places in school.

What rooms in your school are the germiest?

The Nurse's Office

If a student feels sick, they are sent to the school nurse. These offices provide plenty of opportunities for diseases to spread between students. In peak cold, flu and allergy seasons, more foot traffic will increase the risk of exposure.


When evaluating where the most germs are in a school, many people would assume the bathroom – but that’s not the case. In fact, according to a study conducted by NSF International, more than 10 times as many germs were found on a cafeteria tray than on a toilet seat. Cafeterias are high-traffic areas with kids sneezing, coughing, talking and interacting, while eating and drinking off of shared surfaces. Not to mention, food residue promotes bacteria growth.

Gyms/Locker Rooms & Showers

Humid spaces with limited air circulation create ideal environments for germs to spread. Sweaty clothes, free weights and exercise mats are breeding grounds for bacteria, which metabolize the carbohydrates, acids and proteins in sweat to release an odor. These types of environments also make it easier for students to pick up an infection off of shared surfaces or equipment. Potentially fatal diseases – such as the COVID-19 virus or a staph infection – can then be spread between athletes via the exchange of body fluids and skin-to-skin contact.


Preventing germs in the classroom can be difficult because these rooms are constantly in use. Germs build up throughout the day, even despite traditional cleaning protocols. In a dirty classroom, the average desktop has more than 400 times more bacteria than a toilet seat. Classrooms also contain some of the most contaminated items in a school, like pencil sharpeners, doorknobs and water fountains. And in older buildings, poorly ventilated rooms expose students to more pathogens in the air.

Computer Rooms

Media labs make it challenging to keep up with surface disinfection guidelines because keyboards, mouses and touch screens are hubs for bacteria and fungi to grow. A study at Northwestern Memorial Hospital found that drug-resistant bacterias, including MRSA and VRE, can survive for up to 24 hours on a keyboard. Typically, computer labs broadcast signage to not eat and drink in the room. This not only eliminates the possibility of spilling something on the electronics, but it also prevents contaminant transfer from touching the computer devices into the eyes, nose and mouth.

Before the COVID-19 outbreak, schools relied on PYURE technology for various purposes, including odor elimination, air purification, contaminated air remediation and mold remediation. The same powerful natural cleansing agents that keep us safe from these pathogens also protect us from the COVID-19 virus.

Producing the same concentrations of hydroxyls and organic oxidants that are naturally present in the outdoors, PYURE is a safe, effective solution perfect for critical sanitization needs in schools. In order to deliver better air quality and promote better disinfecting practices in schools, the areas at high risk of spreading germs and viruses must be prioritized and use PYURE’s hydroxyl-generating technology.

If you’re needing assistance investing in solutions to improve your school’s indoor air quality, The Coronavirus Response and Relief Supplemental Appropriations Act of 2021 (CRRSA), can help facilitate that. This provides assistance to elementary and secondary schools that want to invest in air purification and ventilation systems. Click here to learn more and take a look at where the CARES and CRRSA Act can help support a safe return to in-person learning at your school.

Contact us to learn more about our novel technology and how to purchase with one of our authorized distributors.

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