Hearing conservation has quietly become one of the most-cited OSHA programs in U.S. industry. The standard, 29 CFR 1910.95, hasn’t changed in decades, but how clinicians and EHS teams actually deliver an annual audiogram has. In 2026, occupational health teams choose between four materially different testing approaches, and the practical differences between them matter more than the marketing makes it sound.
This blog article walks through each one in the order most clinicians encounter them, names the systems you’ll evaluate, and is honest about where each category struggles. The goal isn’t a feature checklist — it’s helping you align test methods to your population, your environment, and the audit-grade record you’ll need three years from now.
The four paths to an OSHA-compliant hearing test
1. The traditional sound booth
The historical baseline. A single-walled (or, in some clinics, double-walled) booth, paired with a computer-controlled audiometer like the Benson CCA-200mini, has been the reference design for occupational audiometry since the 1980s. The CCA-200mini is a capable, OSHA-compliant audiometer with IntelliTesting consistency checks, multilingual prompts, and EMR integration; there’s nothing wrong with the audiometer itself.
The friction is in the booth.
A booth costs five to six figures installed, occupies a permanent room, and often tests one employee at a time. For a single-site clinic that already owns one, this is a fine workflow. For a 400-person manufacturer running annual audiograms across two shifts, it’s a bottleneck: every audiogram pulls the employee off the floor, walks them to the booth, runs a ~15-20 minute test, and walks them back. Multiply by your headcount, and the booth becomes the limiting factor, regardless of how excellent the audiometer is.
Multi-person sound booths are sometimes used for increased throughput. The major limitation here is that the group is dismissed when the slowest person finishes their hearing test. If one individual has finished their test in seven minutes, they cannot be dismissed. They will continue to hear “keep busy tones” until the slowest individual completes their hearing test. Multi-person testing in a sound booth can also be hot, uncomfortable, and noisy.
Best fit: Clinics with permanent space and steady, individual-paced patient flow.
Where it strains: Annual testing at scale; multi-site operations; remote or rotating workforces.
2. Mobile audiometric vans and trailers
Vans solved a real problem: bringing the booth to the worksite. For decades, they’ve been the default for distributed workforces in manufacturing, utilities, oil & gas, and construction.
The cost structure, though, is rarely the bargain it appears. Published market analyses estimate per-test costs for mobile van services at roughly $45–$80 per employee, with 30–45 minutes of employee downtime per test after accounting for queueing, paperwork, and walk time. For a 250-person site, that’s roughly $12,000–$20,000 a year for the testing event itself, before lost productivity.
The bigger risk is record custody. The audiograms and the baselines on which Standard Threshold Shift (STS) determinations depend are held by the vendor. If the vendor closes, gets acquired, or migrates its software, transferring those baselines cleanly isn’t always possible. OSHA inspectors don’t care whose fault that is.
Best fit: Single-event-per-year testing where infrastructure investment isn’t justified.
Where it strains: Year-round operations (catching those that need follow-up testing and new hires), baseline portability, audit defensibility, and integration with the rest of your EHR stack, tend to be costly.
3. Tablet-based boothless audiometers
The first wave of “boothless” systems solved the obvious problem with vans: taking the audiometer out of the vehicle and into a quiet on-site room.
Three things to understand before choosing a tablet-based system:
Ambient noise monitoring uses the tablet’s built-in microphone. That’s a reasonable compromise; it’s what’s available, but it’s not a calibrated sound-level meter. Room-scan features indicate whether the room was quiet at the time of the scan; sustained monitoring during the test session is software-driven and relies on a consumer-grade mic.
Attenuation depends on the headset, not the booth. Most tablet-based boothless systems use a standard off-the-shelf headset that was never designed to be a boothless system. These headsets, like a TDH-39, RadioEar DD450, or RadioEar DD65, do not provide the same attenuation as a sound booth, so must be used in extremely quiet environments. It does not give you enough headroom to test on the production floor, where the people who actually need testing are.
Audiometer grade matters. Some boothless tablet systems are classified as Type 3 or Type 4 audiometers under ANSI S3.6 — appropriate for screening, not for diagnostic threshold determination. For an occupational hearing conservation program where you’ll be making STS calls and baseline revisions, audiometer type is not a footnote.
Best fit: Single-tester workflows in dedicated, predictably quiet rooms; programs that already manage scheduling around individual appointments.
Where it strains: High-throughput shift transitions, noisy facilities without a quiet room, programs that need to combine hearing testing with hearing protector fit testing in the same visit.
4. Wearable sound booth (the WAHTS approach)
This is the category WAHTS Hearing built. The audiometer is FDA-registered, ANSI S3.6-compliant, and wirelessly paired with a tablet running the Audhere app. The proprietary transducer was designed not for music or general consumer use but specifically for audiometric testing: it delivers passive attenuation comparable to a single-walled sound booth, with measurably stronger low-frequency attenuation than the over-ear headphones used in competing tablet systems.
The practical consequence is testing latitude. Under the OSHA-recognized ANSI-derived Maximum Permissible Ambient Noise Levels (MPANLs), which account for headset attenuation, WAHTS can test at higher background noise levels, particularly in the 250–1,000 Hz range, where industrial environments are noisiest. In plain language: you can test in a break room, a conference room, or a portable trailer, and stay inside the standard.
The wearable sound booth excels at high-volume testing. With this system, multiple listeners can take simultaneous hearing tests, and the listeners can be dismissed as soon as their test is complete (without waiting for the slowest individual to finish). This method of testing increases throughput and gets employees back to their jobs faster.
Four other practical differences for clinicians:
- One administrator can monitor multiple simultaneous tests. Annual recertification across a 300-person plant goes from a multi-week scheduling exercise to a one- or two-day event.
- Hearing testing and hearing-protector fit testing happen in the same session, on the same headset. No equipment change, no re-entry of demographics, no re-explanation of the task to the employee.
- You own the hardware. No per-test fee, no relocation clause, no publicity rights over your organization’s name.
- Data integrations. Send your hearing test results to the EHR of your choice.
Best fit: Multi-site or large single-site programs running OSHA hearing conservation in real-world (i.e., not perfectly quiet) industrial environments.
Where it strains: In single-clinic settings with very low patient volume, the throughput advantage is wasted.
The clinician’s decision matrix
| Consideration | Booth + Clinical | Mobile Van/Trailer | Tablet Boothless | WAHTS |
| Capital model | High one-time | OpEx per visit | Mid one-time | One-time purchase |
| Per-test cost at scale | Low (if utilized) | High | Low | Low |
| Throughput per admin | 1+ | Often 4-6 | 1+ | As many as you want |
| Audiometer grade (ANSI S3.6) | Type 1/2/3/4 | Often Type 3/4 | Often Type 3/4 | 2/3/4 |
| Ambient handling | Booth | Booth in van | Tablet mic + room scan | Headset attenuation + Svantek SLM |
| Combined fit testing | Separate | Separate | Separate | Same headset, same visit |
| Record portability | Local/EMR | Vendor-controlled | Cloud, exportable | Cloud, your data |
| Relocation freedom | Fixed | N/A | Portable | Fully portable |
Closing
Every approach on this list can produce an OSHA-compliant audiogram for a cooperative patient in a quiet room. The differences show up in the conditions you actually operate in, noisy floors, shift transitions, multiple sites, audit cycles three years out, and the question of who owns the data when the contract ends.
For occupational health programs that require clinical-grade testing in real-world industrial environments, with throughput that matches the workforce and commercial terms that align with traditional equipment ownership, the wearable sound booth category is where the field has landed.
See it in your environment. Request a WAHTS demo — we can help you see the tremendous value WAHTS can bring to your organization!