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 five 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 five 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 clinical 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 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 ~10–15-minute test, and walks them back. Multiply by your headcount, and the booth becomes the limiting factor, regardless of how excellent the audiometer is.
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
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, baseline portability, audit defensibility, and integration with the rest of your EHR stack.
3. Tablet-based boothless audiometers
The first wave of “boothless” systems — SHOEBOX Audiometry on iPad and hearX’s hearTest Occ Health on a Samsung tablet — solved the obvious problem with vans: taking the audiometer out of the vehicle and into a quiet room on-site. Both systems are OSHA-compliant when used as directed. SHOEBOX has been clinically validated in peer-reviewed literature; hearTest is FDA-registered and CE-marked.
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. Both systems address this with passive transducers and, in hearTest’s case, an over-the-top ear defender (3M Peltor X-Series with insert IP30 phones). That works in moderately quiet rooms. 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 anteroom, programs that need to combine hearing testing with hearing protector fit testing in the same visit.
4. Cloud/IoT noise-and-testing platforms
A newer category, exemplified by Soundtrace, layers fixed IoT noise monitors and software-driven “AI” risk analytics onto a boothless audiometer. The pitch is compelling — connect continuous noise exposure data to fit test scores and audiograms, and surface early-warning flags for likely STS.
The technology, in plain terms, is applied workflow analytics on data that the platform already collects. That’s useful. Where clinicians should look closely is the commercial structure: hardware-as-a-service contracts in this category commonly include relocation restrictions (“equipment may not be removed from the facility or relocated within the facility without prior written consent”), broad publicity rights that name your organization as a customer in their marketing, and provisions allowing reuse of aggregated “performance data.” None of that is unusual in SaaS; it is unusual in clinical equipment that you historically owned.
Another consideration is offline operation. If your testing site has spotty connectivity, cloud-first platforms will queue and sync, but the workflow assumes an uplink.
Best fit: Single-site programs that want noise monitoring and audiometry from one vendor and accept SaaS commercial terms.
Where it strains: Multi-site operations, equipment ownership policies, programs sensitive to logo-use clauses, and sites with limited connectivity.
5. Wireless boothless headsets (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.
Three other practical differences for clinicians:
- One administrator can monitor seven 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.
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 | Tablet Boothless | IoT/Cloud | WAHTS |
| Capital model | High one-time | OpEx per visit | Mid one-time | Subscription/HaaS | One-time purchase |
| Per-test cost at scale | Low (if utilized) | $45–$80 | Low | Bundled in a subscription | Low |
| Throughput per admin | 1 | 1–2 | 1 | 1 | Up to 7 simultaneous |
| Audiometer grade (ANSI S3.6) | Type 1/2 (clinical) | Type 1/2 in van | Often Type 3/4 | Varies | Clinical-grade |
| Ambient handling | Booth | Booth in van | Tablet mic + room scan | Tablet mic + IoT sensors | Headset attenuation + ANSI MPANLs |
| Combined fit testing | Separate | Separate | Separate | Integrated | Same headset, same visit |
| Record portability | Local/EMR | Vendor-controlled | Cloud, exportable | Cloud, vendor terms | Cloud, your data |
| Relocation freedom | Fixed | N/A | Portable | Often restricted by TOS | Fully portable |
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 wireless boothless 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!