Closing the Last Gap in the Touchless Restroom: An Environment of Care Risk Assessment
Walk into a modern healthcare restroom and you will see the Hierarchy of Controls in action. Automatic flush valves, touchless faucets, touch-free soap dispensers, and hands-free paper towel systems have successfully engineered out many historical opportunities for cross-transmission.
These features reflect a rigorous commitment to reducing environmental contamination. Yet, when evaluating the entire Environment of Care (EOC), one highly porous, unshielded surface adjacent to a high-energy aerosolization zone often remains entirely unchanged: the toilet tissue dispenser.
While infection prevention efforts routinely focus on non-porous, high-touch surfaces, exposed toilet tissue dispensing systems represent an overlooked contact pathway that deserves a closer look.
The Science of Bioaerosols: Understanding the Plume
For infection prevention specialists, environmental control is driven by data. Decades of aerosol research have established that high-pressure flush fixtures generate turbulent bioaerosols,1 commonly referred to as "toilet plume". These forced aerosols atomize microorganisms originating from toilet bowl contents, dispersing fecal and viral pathogens2 throughout the immediate restroom environment.
Depending on flush pressure, ventilation efficiency, and fixture configuration, these microscopic droplets can remain airborne long enough to settle onto surrounding environmental surfaces. For an IP leader, this reality reinforces a foundational principle: environmental contamination routinely occurs on surfaces not traditionally classified or tracked as high-touch areas.
The Dual Exposure Pathway
An open or partially enclosed toilet tissue dispenser introduces two distinct vector risks into a clinical restroom environment:
· Passive Bioaerosol Settling: Because dispensers are typically positioned directly adjacent to the fixture, open rolls sit entirely unprotected within the primary zone of aerosol dispersion.3 Droplets containing stable, spore-forming pathogens like Clostridioides difficile (C. diff) or highly contagious viral particles like Norovirus can settle directly onto the porous fibers of the paper.
· Active Cross-Contamination: When a user manually advances an exposed roll, unwashed hands frequently contact the dispenser and remaining paper. This leaves behind fomites4 that immediately threaten the next user.
While the exact percentage of healthcare-associated infections (HAIs) directly traced to toilet tissue has not been fully isolated in epidemiological studies, both mechanisms perfectly align with established clinical models of fomite-mediated transmission. One group of researchers found that the length of organism survival depends on environmental room conditions but were stable on paper for up to 72 hours and still cultivable after seven days.5
High-Acuity Risk and Vulnerable Populations
In public areas, standard hygiene protocols may suffice. However, within high-acuity healthcare environments, the risk profile changes drastically. Healthcare organizations must protect highly vulnerable patient populations, including:
· Oncology and hematology patients
· Solid organ and stem cell transplant recipients
· Intensive care unit (ICU) patients
· Long-term care and geriatric residents
· Individuals undergoing aggressive immunosuppressive therapies
In these care zones, the threshold for acceptable risk is zero. This is why IPs routinely evaluate and implement environmental engineering controls that might be deemed non-essential in a commercial setting, but provide meaningful, layered risk reduction within a hospital.
An Engineering Control for the Environment of Care
Infection prevention is rarely built around a single intervention. Success comes from layers of protection working together so that no single failure leads to an outbreak. Hand hygiene programs, environmental cleaning protocols, touchless fixtures, ventilation systems, and surface disinfection practices all contribute to reducing risk.
During your next environmental rounds or formal Environment of Care assessment,6 consider evaluating your restroom tissue dispensing systems using the following clinical criteria
· Is tissue exposed to the surrounding restroom environment?
· Is the tissue roll currently shielded from bioaerosol settling?
· Is the dispensing mechanism completely enclosed to prevent cross-contamination from prior users?
· Is the housing material durable enough to withstand rapid, daily disinfection with hospital-grade sporicides (e.g., bleach or accelerated hydrogen peroxide)?
· Does the design support operational efficiency for EVS and remain fully ADA compliant?
These considerations align with the same risk-reduction principles that have driven adoption of other touchless restroom technologies.
Completing the Strategy: Health E Roll Commander®
Addressing this overlooked exposure pathway does not require disrupting your existing facilities workflow. The Health E Roll Commander® from Vital Safety Innovations was engineered specifically to meet these stringent clinical demands.
As an effective engineering control, its fully enclosed, touchless design entirely isolates the paper roll from environmental plume exposure while preventing users from contacting any tissue other than the sheet they intend to use. Built to seamlessly integrate into high-traffic, high-acuity environments, it offers a practical, deployable solution that bridges the final gap in your touchless restroom strategy.
In the data-driven world of infection prevention, the critical question is not whether toilet tissue dispensers represent your facility’s highest-volume vector. The question is whether they represent a known, quantifiable exposure pathway that can be easily and reasonably mitigated using the exact same touchless principles you have already applied everywhere else. Mitigating small, hidden risks before they manifest as epidemiological trends is what excellent infection prevention is built upon. Include toilet tissue systems in your next EOC evaluation.
Recommended Reading
1. Crimaldi JP, True AC, Linden, KG, et., al. (2020). Commercial toilets emit energetic and rapidly spreading aerosol plumes. Scientific Reports (Nature);12: 20493. https://www.nature.com/articles/s41598-022-24686-5
2. Johnson D, Lynch R, Marshall C, et., al. (2013). Aerosol Generation by Modern Flush Toilets. Aerosol Sci Technol;47(9), 1047-105. https://doi.org/10.1080/02786826.2013.814911
3. Paddy EN, Sohail M, & Afolabi OO. (2025). Evaluating the risk of Clostridioides difficile infection from toilet flushing: a quantitative microbial risk assessment and implications for infection control. J Hosp Infect;159, 92-99. https://doi.org/10.1016/j.jhin.2025.02.012
4. Gerba CP. (2009). Research Finds Average Toilet Paper and Towel Dispensers Have More Bacteria Than Average Toilet Seat. Infection Control Today. https://www.infectioncontroltoday.com/view/research-finds-average-toilet-paper-and-towel-dispensers-have-more-bacteria
5. Huber NO, Huber C, Kramer A, & Assadian O. (2011). Survival of bacterial pathogens on paper and bacterial retrieval from paper to hands: preliminary results. Am J Nurs;111(12), 30-4. https://doi.org/10.1097/01.naj.0000408181.37017.82
6. Infection Prevention and Control Issues in the Environment of Care, 5th edition. (2023). The Joint Commission. https://www.jointcommission.org/en-us/products/ipiec23p