What do I need to confirm before renting a fit test system?
Start with the respirator types being tested by confirming the MAKE & MODEL. That determines whether you need PortaCount N95 (8038/8048), AeroFit, or a QuantiFit 2 workflow for elastomeric and full-face respirators. Then confirm: fit test method required (OSHA-accepted QLFT or QNFT), OSHA compliance for your specific respirator type, number of employees, calibration status, and how you plan to run tests and export reports.
Which fit test system should I rent: PortaCount, AeroFit, or QuantiFit2?
Rent a PortaCount when the customer wants a widely recognized CNC workflow and may need different accessory options depending on the respirators in use. Within the PortaCount family, use an 8048 or 8038 when N95 testing is required, and an 8040 or 8030 when the job is reusable respirators only. Rent an AeroFit when the customer wants fast CNC testing with N95 capability and a modern standalone workflow. Rent a QuantiFit2 when the work is elastomeric or full-face only and the customer wants the fastest no-particle-generator, no-consumable workflow.
Why are my employees failing fit tests?
Most fit test failures come down to mask fit or setup, not the machine. Common causes are the wrong respirator make/model/size, incorrect strap adjustment, facial hair, worn masks, the wrong adapter setup, or loose connections. Disconnecting and reconnecting the tubing to the adapter pieces—and the adapter pieces to the respirator—is a very common troubleshooting step.
What's a common mistake people make when setting up fit testing?
A common mistake is treating the fit test machine as the whole solution. Most problems actually come from missing respirator make/model/size details, the wrong adapter kit, or not planning the software and report workflow before test day.
Why do you need my respirator make, model, and size to confirm the correct adapter kit for mask fit testing?
Fit test adapters are respirator-specific—the probe port must align exactly with the facepiece geometry. Using the wrong adapter can prevent a valid test or damage the respirator. Confirming make, model, and size ensures you get the right kit before the test day.
When is real-time fit factor feedback worth caring about?
Real-time fit factor feedback is most valuable during training—helping workers understand how donning technique affects seal quality—and during initial fit testing when you want to evaluate multiple facepieces or sizes efficiently. For standard annual fit testing of known-fit respirators, a traditional quantitative fit test protocol is sufficient. Real-time feedback adds value when you're troubleshooting seal failures or training large groups.
How long does a fit test take for N95 and non-N95 respirators?
N95 fit tests often take about 7–8 minutes with a standard PortaCount protocol, while AeroFit can complete many N95 tests in about 2.5–3 minutes. For non-N95 elastomeric half-mask and full-face respirators, QuantiFit2 tests are typically completed in about 2–3 minutes. Real throughput still depends on setup, adapters, and how many mask models or sizes are in the program.
Why am I having trouble generating a fit test report from the software?
Most report problems come from setup, not the fit tester itself—wrong software, incomplete test records, connection issues, or export settings. If the customer expects to run tests and generate reports, confirm that workflow before shipment so the right guidance and accessories are included.
