Managing Mixed Respirator Programs: Respirator Fit Testing Best Practices
Managing a respiratory protection program can be a complex task, especially when it involves both elastomeric and filtering facepiece respirators like N95s. Organizations often grapple with selecting the right fit testing technology, ensuring accurate documentation, and staying on top of compliance requirements. These challenges are magnified for workplaces juggling multiple testing devices or locations.
Understanding Fit Testing Technologies: CNP vs. CNC
There are two widely- approved quantitative fit testing methods: Controlled Negative Pressure (CNP) and Condensation Nuclei Counting (CNC). Both have distinct advantages depending on the type of respirators being tested.
Controlled Negative Pressure (CNP)
CNP technology, used in devices like the QuantiFit2, tests elastomeric respirators with unparalleled efficiency. It uses air as the challenge agent, creating a controlled inhalation pressure to evaluate the respirator’s seal. The test is fast (just two minutes), requires no consumables, and can be performed anywhere. The Redon protocol includes simple exercises such as bending, head shaking, and re-donning the mask, ensuring comprehensive results.
Condensation Nuclei Counting (CNC)
CNC, employed by the AeroFit, measures leaks using particles as the challenge agent. It is the only technology capable of testing filtering facepiece respirators (e.g., N95s). The new Fast Fit CNC protocol takes just under 2.5 minutes and includes exercises like head movements and talking, ensuring rigorous testing.
Addressing Challenges in Mixed Respirator Programs
Many organizations face a dilemma when managing programs that require testing both N95s and elastomeric respirators. While CNC is essential for filtering facepiece respirators, CNP offers unmatched efficiency for elastomeric models. This has historically left users with limited options:
- Juggling multiple fit testing machines for different respirator types.
- Resorting to qualitative fit testing, a time-consuming and subjective method.
The Pitfalls of Qualitative Fit Testing
Qualitative fit testing introduces several inefficiencies. Relying on a test subject’s ability to detect and report a taste or smell during the test adds subjectivity to the process. It also demands a significant time investment—13.5 to 18 minutes per test—and if a subject fails late in the test, the entire process must be repeated. For organizations conducting high volumes of testing, these inefficiencies can strain both time and resources.
The Power of Integration: Unified Technology with Logic Cloud
Fortunately, managing fit testing data across different fit testing technologies is easy. OHD’s Logic Cloud, a powerful, cloud-based software solution, simplifies fit testing data capture and compliance tracking.
A Single Platform for All Fit Testing Devices
Logic Cloud brings together data from both QuantiFit2 and AeroFit instruments, eliminating the headaches of juggling data from multiple systems. Whether you’re testing at a single location or across multiple sites, Logic Cloud centralizes data, ensuring it’s always accessible and accurate.
Streamlined Compliance Tracking for Fit Testing
Monitoring compliance is a breeze with Logic Cloud. Administrators can oversee fit testing schedules, track deadlines, and ensure every test is completed on time—without the need for spreadsheets or manual reminders. Automated notifications alert teams when testing deadlines approach or lapse, reducing the risk of oversights.
Robust Reporting and Audit Readiness
Gone are the days of scrambling for records during audits. Logic Cloud provides instant access to comprehensive reporting tools, enabling you to review testing trends, generate reports, and ensure compliance across all locations. With one central cloud database, data is always up to date, offering peace of mind during reviews.

Logic PC: A Simple, Windows-Based Solution
For organizations seeking a PC-based software solution, Logic PC provides some essential fit testing management features as a downloadable software compatible with Windows devices. Using Logic PC, fit test operators can connect to and run tests on up to eight fit testing instruments simultaneously. From there, operators can sync data from multiple devices to one computer. Data can be stored on a local PC database or a SQL database on a server. While less robust than Logic Cloud, Logic PC offers a free, windows-based solution for basic fit testing compliance needs.
Streamlining Data Collection Respiratory Protection Programs
By combining CNP and CNC technologies with centralized software, OHD offers a solution that prioritizes efficiency, accuracy, and user experience. This integration streamlines workflows, enhances compliance efforts, and reduces the complexity of managing a mixed respirator program.
Whether you’re a healthcare provider conducting high-volume N95 testing or an a fire chief overseeing elastomeric respirator programs, or a safety manager overseeing a program with multiple respirator types, OHD offers solutions to keep your organization safe and compliant.
Ready to Revolutionize Your Fit Testing Program?
Simplify your respiratory protection program with OHD’s integrated fit testing solutions. Request a demo today and experience the Logic Cloud difference.