SAS 6101-B Review: NRR 32 Corded Foam

Industrial Hearing Protection That Stays With You

Published June 19, 2026 · Last updated July 27, 2026

SAS Safety Corp Corded Foam Earplugs 100 Pairs Review (2026)

Bulk-pack corded foam earplugs are the daily backbone of any industrial hearing conservation program. The SAS Safety 6101-B earns its place on the shelf with an NRR 32 dB rating under ANSI S3.19, a cord that keeps plugs paired and accountable, and 100 pairs per box — enough to stock a safety cabinet for a full quarter without reordering. This review breaks down exactly what you get, where it competes, and whether it belongs in your workplace.

At WC Safety we evaluate hearing protection against the OSHA 29 CFR 1910.95 hearing conservation standard. That means we look past marketing copy and focus on real-world attenuation, insertion ergonomics, compliance fit for supervisors running programs, and cost-per-pair economics. If you manage a warehouse, construction site, or manufacturing floor, those four factors are what matter when you buy 100 pairs at a time.

The SAS 6101-B is a pre-shaped, roll-and-insert foam plug with a low-profile connecting cord. It is certified to ANSI S3.19, meets OSHA 1910.95 program requirements, and ships in bulk quantities purpose-built for industrial use. Read on for our full assessment.

Who These Earplugs Are For

The SAS 6101-B is built for safety managers, supervisors, and purchasing agents who need to stock a hearing-conservation cabinet and keep it stocked. One hundred pairs in a box means less frequent reorders, lower per-unit cost, and simplified inventory tracking. The cord feature is a deliberate compliance aid — it keeps both plugs together and makes it visually obvious when a worker is wearing their protection, which simplifies floor audits.

These are not the right pick for a worker who wants a premium custom-fit experience or who switches frequently between loud and moderate environments. For workers weighing reusable vs disposable earplugs, this product sits firmly in the disposable, single-use category. If you have a high-headcount environment where hygiene and plug loss are recurring issues — construction, manufacturing, landscaping, grinding operations — the 100-pair bulk corded format is purpose-built for that problem.

The product is also a fit for any operation where OSHA 1910.95 compliance documentation matters. Corded earplugs are inherently easier to audit than loose plugs, which benefits both the employer and the industrial hygienist conducting noise exposure assessments. Browse the full earplugs collection at WC Safety or the broader hearing protection catalog to compare formats.

Strengths in Detail

1. NRR 32 dB — Maximum-Category Foam Protection

Under ANSI S3.19, the SAS 6101-B earns an NRR of 32 dB. That places it among the highest-rated disposable foam earplugs on the market. NRR 32 is the ceiling for most commercial foam designs, achieved through the material's ability to expand uniformly within the ear canal and block high-frequency noise — the frequencies most damaging to the inner ear over time with repeated exposure.

It is critical to understand what NRR means in practice. ANSI S3.19 testing is conducted in a laboratory under ideal fitting conditions with trained subjects. OSHA's accepted derating methodology for single-number ratings (divide NRR−7 by 2) yields approximately 13 dB of real-world attenuation. That figure still provides meaningful protection: a worker exposed to 95 dBA continuous noise would experience a protected exposure of approximately 82 dBA — below both the OSHA 85 dBA action level and the 90 dBA PEL under 29 CFR 1910.95.

For a deeper breakdown of how NRR translates to job-site protection levels, see our complete NRR guide for hearing protection.

2. ANSI S3.19 and OSHA 1910.95 Compliance

The 6101-B carries ANSI S3.19 certification — the standard that governs hearing protector attenuation testing in the United States. This certification is a prerequisite for inclusion in a formal OSHA hearing conservation program under 29 CFR 1910.95. Any employer operating a hearing conservation program is required to provide hearing protectors that have been tested and rated under an accepted standard; ANSI S3.19 satisfies that requirement.

OSHA 29 CFR 1910.95 mandates hearing conservation programs for workers exposed to time-weighted average (TWA) noise levels at or above 85 dBA. At the 90 dBA PEL, employers must provide hearing protection and workers must use it. The SAS 6101-B, with its ANSI-certified NRR 32, is an appropriate selection for environments from 85 dBA up to approximately 103 dBA TWA (using OSHA derating). For our full regulatory breakdown, visit the hearing conservation program compliance guide.

3. Cord System: Compliance Accountability and Plug Retention

The connecting cord is not merely a convenience feature — it serves an active compliance function. Workers who remove earplugs for brief conversations tend to set them down and forget them. A cord keeps both plugs physically attached to the worker; when removed, they hang at chest level rather than disappearing into a pocket or onto the floor. For supervisors conducting floor audits, a corded earplug is visually confirmable at a glance from across a work cell.

The cord also mitigates contamination concerns. Loose plugs set on dirty surfaces can accumulate oils, grit, or chemical residue before reinsertion. A corded design keeps them off surfaces between uses. In environments with regulated contaminant exposure, this is a small but legitimate hygiene advantage that also supports OSHA 1910.95 program integrity.

4. 100-Pair Bulk Format — Program Economics

For safety programs with ongoing earplug consumption, the 100-pair box meaningfully reduces per-unit cost compared to smaller packs. A single box serves a crew of 20 workers for one to two weeks of daily replacement — standard practice under most hearing conservation programs, which typically require fresh plugs each shift. The bulk format reduces purchasing frequency, simplifies storage, and keeps per-pair cost at a level that makes daily disposal economically sustainable without straining a safety budget.

Compare bulk options and NRR ranges across brands in the WC Safety foam earplug collection. For a curated comparison of top performers, see best foam earplugs and best earplugs for work.

5. Soft Pre-Shaped Foam — Broad Insertion Compatibility

Pre-shaped foam plugs are contoured to approximate average ear canal geometry, reducing the technique skill required for correct insertion. The roll-compress-insert method still applies — the user rolls the plug to a thin cylinder, compresses it, inserts it, then holds it gently while it expands — but the pre-shaping helps guide correct depth and orientation. This is a meaningful ergonomic advantage in environments where workers have varying earplug experience or where fit training is limited to a brief onboarding session.

Weaknesses to Consider

1. Disposable Only — Cumulative Material Cost at Scale

The 6101-B is a single-use disposable earplug. For environments where workers use one pair per shift, five days a week, the annual consumption per worker is approximately 250 pairs. At 100 pairs per box, that is 2.5 boxes per worker per year. At scale across a large workforce, this adds up and generates ongoing material waste. Programs looking to reduce recurring cost and environmental footprint should compare against reusable earplug options, which carry a higher unit cost but far lower total consumption over time.

2. Cord Bulk and Tangle Potential

The connecting cord is a net positive for compliance, but it introduces minor ergonomic friction. The cord can tangle with tool lanyards, loose clothing, or other PPE layers when stored or worn around the neck. Workers unaccustomed to corded designs sometimes report the cord as distracting during overhead work or when wearing full-brim hard hats. This is not a disqualifying issue, but it is worth noting for job sites where workers also layer face shields, respirators, or neck-strap safety glasses — each PPE layer adds cord-management complexity.

3. OSHA Derating Narrows Effective Protection Window

The headline NRR 32 dB rating can create false confidence if applied at face value. OSHA's accepted derating methodology yields approximately 13 dB of real-world protection — not 32 dB. The 6101-B is appropriate for environments up to approximately 103 dBA TWA as the sole hearing protector. Environments exceeding that level require dual protection (earplugs plus earmuffs) or a higher-attenuation device. Employers must verify TWA measurements before specifying any earplug as the sole hearing protector in their program.

4. Fit Variability in Non-Average Ear Canals

Pre-shaped foam plugs are designed around average adult ear canal geometry. Workers with small or unusually shaped canals may achieve less-than-labeled attenuation. Mature hearing conservation programs should offer multiple earplug styles to accommodate anatomical variation — OSHA 1910.95 recommends offering a variety of hearing protectors where feasible. The 6101-B is an excellent primary option but should not be the only option in a well-designed program.

Competitor Comparison

How does the SAS 6101-B stack up against comparable bulk corded foam earplugs? The table below compares key specifications across leading options in the WC Safety hearing protection catalog.

Competitor NRR values sourced from published ANSI S3.19 data sheets. Pricing varies by retailer and date.

SAS Safety Earplug Series Overview

Complementary PPE and Accessories

Hearing protection rarely operates in isolation. In environments requiring dual protection or multi-hazard PPE layers, consider pairing the SAS 6101-B with compatible equipment from the WC Safety PPE collection:

• Ear muffs — for dual protection in environments exceeding 103 dBA TWA; OSHA guidance recommends wearing earplugs and earmuffs simultaneously above that threshold
• Hearing protection dispenser stations — keeps bulk earplug packs organized and accessible at plant entry points or tool cribs
• Noise dosimeters and sound level meters — required for establishing accurate TWA baselines under an OSHA 1910.95 program; specifying the correct NRR-rated plug starts with verified dosimetry data

OSHA and ANSI S3.19 Standards Context

Understanding the regulatory and testing framework behind earplug ratings is essential for anyone specifying hearing protection at the program level. Here is the framework applied to the SAS 6101-B:

ANSI S3.19 — The NRR Test Standard

ANSI S3.19 (American National Standard for the Measurement of Real-Ear Attenuation at Threshold) governs how hearing protector attenuation is measured in the United States. Under this method, trained laboratory subjects fit the hearing protector under supervised conditions, and real-ear attenuation at threshold (REAT) is measured across multiple test frequencies. The result is a single-number Noise Reduction Rating (NRR) in decibels. The SAS 6101-B's NRR of 32 dB is derived from this standard. All hearing protectors sold in the U.S. with an NRR label have been tested under ANSI S3.19 or its predecessor.

OSHA 29 CFR 1910.95 — Occupational Noise Exposure

OSHA's general industry hearing conservation standard at 29 CFR 1910.95 establishes two key thresholds: the action level (AL) of 85 dBA TWA, which triggers a hearing conservation program requirement, and the PEL of 90 dBA TWA, at which hearing protection use is mandatory. The standard also requires that selected hearing protection be adequate to reduce worker noise exposure to at least the action level.

Using OSHA's derating formula — (NRR − 7) ÷ 2 — the SAS 6101-B provides approximately 12.5 dB of effective attenuation, rounded to ~13 dB. Applied examples: a worker at 95 dBA TWA achieves a protected exposure of ~82 dBA (below both the AL and PEL); a worker at 103 dBA achieves ~90 dBA (at the PEL limit). Above 103 dBA, dual protection is required. For comprehensive program implementation details, see our hearing conservation program guide.

Total Cost of Ownership

For purchasing managers and safety directors, the per-unit price is only part of the equation. The table below frames annual cost for a 20-worker crew comparing the SAS 6101-B against a reusable alternative:

Estimates based on approximate market pricing at time of review. Actual costs vary by supplier and usage rate. See reusable vs disposable earplugs for a full TCO analysis across earplug categories.

The disposable format remains the correct choice in environments where plug sharing, contamination, or loss is a recurring operational problem. For clean environments with trained workers and stable headcount, reusables often win on long-run cost. The SAS 6101-B's TCO is competitive within the disposable segment due to its bulk-pack pricing structure.

Frequently Asked Questions

What is the NRR of the SAS Safety 6101-B earplugs?

The SAS Safety 6101-B has an NRR of 32 dB as measured under ANSI S3.19. Under OSHA's accepted derating methodology, effective real-world attenuation is approximately 13 dB.

Are these earplugs OSHA compliant?

Yes. The 6101-B is certified under ANSI S3.19 and is appropriate for use in OSHA 29 CFR 1910.95 hearing conservation programs for environments up to approximately 103 dBA TWA when worn alone. Above that level, dual protection is recommended.

How many pairs come in a box?

Each box of SAS Safety 6101-B contains 100 pairs of corded foam earplugs.

Are the SAS 6101-B earplugs reusable?

No. These are single-use disposable earplugs. Replace after each shift or whenever the foam becomes soiled, compressed, or damaged. For reusable options, see our reusable vs disposable earplug guide.

What does the cord do?

The connecting cord keeps both earplugs paired and attached to the worker when removed from the ears. It reduces plug loss, simplifies floor compliance audits (plugs hang visibly from the neck), and minimizes surface contamination from set-down plugs.

How do I insert foam earplugs correctly?

Roll the earplug between your fingers to compress it to a thin cylinder. Reach over your head with the opposite hand to pull the ear canal open, insert the compressed plug, and hold it gently for 20–30 seconds while it expands to fill the canal. Correct insertion is the single largest factor in achieving rated attenuation — improper insertion can reduce effective NRR by 10 dB or more.

What noise levels are these earplugs rated for?

Using OSHA's derating formula, the SAS 6101-B provides approximately 13 dB of effective attenuation, making it appropriate as the sole hearing protector for TWA noise levels up to approximately 103 dBA. For louder environments, pair with ear muffs for dual protection.

What ANSI standard governs earplug NRR ratings?

ANSI S3.19 governs hearing protector attenuation testing in the United States. It specifies the real-ear attenuation at threshold (REAT) test method used to generate NRR values. All U.S.-market earplugs with an NRR label were tested under this standard or its predecessor.

Can I use these earplugs with earmuffs?

Yes. Dual protection — wearing both earplugs and earmuffs simultaneously — is standard practice for environments exceeding 103 dBA TWA. When combining protectors, do not add the two NRR values directly; effective combined attenuation is typically 5–10 dB above whichever protector has the higher NRR. Browse compatible ear muffs at WC Safety.

What industries are these earplugs best suited for?

Construction, manufacturing, landscaping, grinding, stamping, woodworking, and any industrial environment requiring an OSHA hearing conservation program. The corded bulk-pack format is particularly well-suited for high-headcount programs where daily plug replacement and compliance auditing are operational priorities.

How does the OSHA derating formula work for NRR 32 earplugs?

OSHA's accepted derating formula: (NRR − 7) ÷ 2 = effective attenuation. For NRR 32: (32 − 7) ÷ 2 = 12.5 dB, approximately 13 dB of real-world protection. This accounts for the difference between laboratory fit conditions and real-world worker fit variability. See our NRR guide for a full breakdown with worked examples.

Are these earplugs suitable for workers with small ear canals?

Pre-shaped foam plugs target average adult ear canal geometry. Workers with smaller or unusually shaped canals may achieve less-than-labeled attenuation. Mature programs should offer multiple earplug styles to accommodate anatomical variation, as recommended under OSHA 1910.95.

Why Trust WC Safety Reviews

WC Safety is an independent safety equipment review site. Our reviews are grounded in published specifications, ANSI and OSHA standards documentation, and hands-on product evaluation. We do not fabricate attenuation claims, manufacturing claims, or user statistics. All NRR figures cited in this review are drawn from published ANSI S3.19 data. No claims are made beyond what the standard or the product's own data sheet supports. We earn a commission on qualifying Amazon purchases but that does not influence our ratings or conclusions.

Reviewed by Steven Eaton — Safety Equipment Specialist, WC Safety Editorial

Steven Eaton reviews industrial PPE for WC Safety with a focus on OSHA compliance, ANSI standards, and real-world program applicability. All reviews are based on published specifications and regulatory standards.

Reviewed: June 2026 | Next scheduled review: December 2026

Our Methodology

WC Safety earplug reviews evaluate products against ANSI S3.19 published NRR ratings, OSHA 29 CFR 1910.95 regulatory requirements, physical design features (cord, material, shape), bulk-format economics, and fit compatibility. We do not conduct independent acoustic testing. All attenuation claims reflect published ANSI S3.19 data and OSHA-standard derating calculations only.