Improperly disinfected surfaces in healthcare settings remain a major contributor to healthcare-associated infections (HAIs)—an issue responsible for one death every five minutes in the United States. Despite training for environmental services (EVS) professionals and extensive scientific data on which disinfectants eliminate harmful pathogens, surface contamination continues to challenge infection prevention efforts.

Why does this problem persist?

Because disinfecting a surface effectively is far more complex than it appears—and it begins with understanding surface disinfection compatibility.

What Surface Disinfection Compatibility Means

At its simplest, surface disinfection compatibility refers to whether a particular disinfectant can be safely and effectively used on a specific surface material. In practice, many disinfectants degrade or damage common healthcare surfaces. Over time, this creates microscopic cracks, pits, and fissures forming microbial reservoirs where microbes can hide, survive, and multiply away from biocides used to destroy them.

What Damage Looks Like—and Why It Matters

When disinfectants compromise a surface, they unintentionally create environments that protect microorganisms instead of eliminating them. Microscopic damage allows pathogens to attach, grow, and transfer to other surfaces, patients, and healthcare workers.

Visual examples from micrographs show this clearly: the difference between an intact laminate surface and one degraded after a single cleaning cycle is dramatic. The flagella of E. coli, for instance, enable strong attachment to these damaged zones, creating persistent contamination risks.

The Systemic Challenge

Surface damage begins on a microscopic level, but its consequences scale quickly. The industry currently faces several systemic gaps that make managing surface disinfection compatibility difficult:

• No mandatory testing standards. There are no regulations requiring surface materials or products to be tested for compatibility with disinfectants prior to use in healthcare.
• No standardized cleaning or disinfection guidelines. Without benchmarks, it’s nearly impossible to validate whether surfaces can withstand repeated exposure to hospital-grade disinfectants. While all healthcare facilities provide cleaning and disinfection guidelines in infection prevention protocols, these often conflict with manufacturer instructions for use (IFUs) or directions for use (DFUs).
• Inconsistent manufacturer IFUs/DFUs. Care and maintenance guidelines are often written for non-clinical environments and fail to reflect the realities of healthcare use.
• Design-phase disconnects. Healthcare facilities are not built for cleaning and disinfection. Surfaces and products are routinely selected for healthcare environments without reviewing the manufacturer instructions for use or thoroughly reviewing testing, validation, and compatibility data.

These gaps make it difficult to ensure that surfaces remain both cleanable and safe over time—and this has serious financial and clinical consequences.

Real-World Impact: A Case Study

A case study co-published by HSI and the Association of Healthcare Value Analysis Professionals (AHVAP) illustrates this issue vividly. A large Midwestern hospital discovered that the bleach-based disinfectant outlined in its Infection Prevention & Control (IP&C) protocol was damaging a commonly used medical device. Unfortunately, this disinfectant was incompatible with the device manufacturer’s validated cleaning instructions—leaving no compliant option for disinfection.

The result: more than $4 million in repair and replacement costs within two years of purchase for the hospital and $140,000 in testing and replacements for the manufacturer. Additionally, regulatory agencies now also fine healthcare facilities if they don’t follow IFUs/DFUs, and these fines can be substantial. Beyond the financial burden, the situation posed ongoing patient safety risks due to repeated use of damaged medical devices.

Moving Toward a Solution

ISSA Healthcare and the Healthcare Surfaces Institute, a division of ISSA (HSI), are addressing this challenge head-on. A patented test method for evaluating the chemical resistance of plastics used in medical devices—U.S. Patent No. 12,405,197 B2—now provides a uniform way to compare how plastics hold up against healthcare disinfectants. ISSA Healthcare’s Testing and Validation Task Force is building on this foundation to develop a testing program that will set new benchmarks for validating surface disinfection compatibility—helping facility managers, designers, and manufacturers make informed decisions before purchasing materials and products, ensuring cleanability and reducing risks for patients and staff.

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Next in this series: Surface Disinfection Compatibility: Part 2 – Selecting Surface Materials and Products looks at why compatibility testing data is so inconsistent, what the patented test method changes, and what to ask manufacturers before you purchase.