NRR 33 at Under $42 — Is the Howard Leight MAX-1 Still the Disposable Earplug Standard for Industrial Workers?

Howard Leight Maximum MAX-1 Uncorded Earplugs NRR 33 Review (2026)

When hearing conservation programs ask which single disposable earplug offers the most noise reduction available under ANSI S3.19, the conversation almost always lands on the Howard Leight Maximum MAX-1. With an NRR of 33 decibels — the highest rating regularly found in a conventional foam disposable — these uncorded, bell-shaped earplugs have been the go-to bulk buy for construction crews, manufacturing floors, and oil-and-gas job sites for decades.

This review examines the MAX-1 from the perspective of industrial hygiene compliance and day-to-day jobsite use. We assess fit, attenuation, comfort during long shifts, and value against both Howard Leight siblings and competing foam options sold on this site. Every specification cited below is sourced from the product page on wcsafety.com, Howard Leight's published data, and ANSI S3.19 / OSHA 29 CFR 1910.95 requirements.

If you manage a hearing conservation program and are deciding between this earplug and lower-NRR alternatives, or debating disposable versus reusable, the sections below give you the framework to make that call with confidence. Quick take: for workers regularly exposed above 95 dB TWA, the MAX-1's NRR 33 provides the most derating headroom of any single-piece disposable earplug in our catalog.

Who Should Buy the Howard Leight MAX-1?

The MAX-1 is the right call when your OSHA hearing conservation program requires documentation of the highest available attenuation, or when workers are regularly exposed above 95 dB time-weighted average (TWA). Under OSHA's 50% derating method, NRR 33 yields an estimated 16.5 dB of real-world attenuation — enough to bring a 105 dB TWA environment close to OSHA's 90 dB permissible exposure limit (PEL). For a full explanation of how to apply the derating formula, see our NRR Hearing Protection Guide.

The 200-pair box format makes the MAX-1 practical for large crews, high-turnover environments, or dispenser programs. Workers in construction, machining, mining, aviation ground ops, and oil-and-gas will recognize this product — it is one of the most widely distributed disposable earplugs in North American industrial safety. If your team needs a corded option for environments where earplug retrieval is critical, see the Howard Leight MAX-30 NRR 30 Corded version. For smaller noise exposures or workers with narrower ear canals, see our Best Earplugs for Work guide to match the right NRR to your TWA.

Where the MAX-1 Excels

Maximum ANSI-Certified NRR in a Disposable Foam Format

NRR 33 is the ceiling for bell-shaped disposable foam earplugs under ANSI S3.19-1974 laboratory test protocols. The MAX-1 sits at that ceiling. When safety managers must document that workers in 100+ dB environments are meeting OSHA's 90 dB PEL, the MAX-1's rating gives the most margin of any single uncorded foam option in our ear plugs collection. No derating footnotes need to be written around a lower NRR; the math works at NRR 33 when other options fall short.

Bell-Shaped Contour — Better Retention Than Cylindrical Foam

The bell shape matches the natural taper of the ear canal, meaning the earplug's widest flare anchors behind the canal's outer bend rather than relying solely on radial foam pressure. The practical result: the MAX-1 is less prone to backing out during head movement or tool vibration than a straight-cylinder foam plug of equivalent density. For workers on vibrating equipment — jackhammers, compactors, heavy machinery — this matters for sustained real-world attenuation across an 8-hour shift.

Low-Pressure Polyurethane Foam — Comfort Across Long Shifts

The polyurethane formulation is calibrated to expand slowly after roll-down insertion. The low-pressure expansion avoids the ear-canal pressure spikes that cause fatigue with stiffer foam earplugs during extended wear. Workers who previously removed hearing protection early — a major driver of dose overexposure — tend to report better compliance with the MAX-1 because of this reduced pressure sensation. Sustained wear is the single biggest variable in whether an earplug achieves its rated NRR in the field.

Smooth Closed-Cell Skin — Hygienic in Dusty Environments

The outer skin of the MAX-1 is a smooth, closed-cell polyurethane that resists debris and contaminant absorption. In foundries, grinding operations, or cement work where airborne particulates are dense, an open-cell or textured earplug accumulates grit that degrades the foam and increases cross-contamination risk. The MAX-1 is single-use and the smooth skin ensures the plug is clean at the point of insertion even if stored loosely in a pocket.

Per-Pair Cost at 200-Pair Volume

At $41.16 for 200 pairs, the MAX-1 comes in at approximately $0.21 per pair — among the lowest cost-per-pair available for NRR 33 protection. Safety supply programs that provision dispensers for high-turnover workforces will find this pricing defensible even when accounting for training time and insertion verification checks. The unit economics improve further when comparing against the ongoing cost of reusable earplug sanitization programs.

Where the MAX-1 Falls Short

Foam Density Consistency at Scale

Customer feedback on the MAX-1 consistently surfaces one concern: foam density variance within a single box. When density is inconsistent, some pairs expand faster or softer than others, affecting both the achievable NRR and the tactile signal workers use to confirm correct insertion. For individual buyers or small teams, batch-to-batch variance is rarely noticeable. For programs issuing hundreds of pairs per month, statistically more workers will encounter suboptimal pairs, which can erode program confidence.

Roll-Down Technique Required — Training Is Not Optional

No foam earplug — regardless of NRR rating — achieves its rated attenuation without correct insertion. The roll-down technique (compress to a tight cylinder, pull ear up and back, insert deeply, hold until expanded) takes 15–30 seconds and requires training. Workers who skip the roll-down, insert the plug only partway, or pull it out while it's still expanding will achieve significantly less than NRR 33 in practice. Our Best Hearing Protection for Industrial Workers guide covers insertion training in detail.

Uncorded Format — Retrieval and Loss

The MAX-1 is uncorded by design. For most applications this is an advantage — no cord to snag on machinery or clothing. But in environments where earplug loss into product streams, food lines, or close-tolerance machining is a concern, uncorded is a liability. For those environments, the corded Howard Leight MAX-30 or a detectable earplug model is the correct choice. See our Reusable vs. Disposable Earplugs guide for a full breakdown of application-specific tradeoffs.

Not the Right Tool Above 105 dB Without Dual Protection

Even at NRR 33, there are noise environments where a single earplug is insufficient. OSHA's derating formula leaves effective attenuation at approximately 13 dB (OSHA method) to 16.5 dB (NIOSH method) from an NRR 33 earplug. In environments consistently above 103–106 dB TWA, that margin disappears. NIOSH recommends dual protection (earplugs worn simultaneously with earmuffs) for exposures above 100 dB. Pair the MAX-1 with an earmuff from our hearing protection collection if your measured TWA exceeds that threshold.

How the MAX-1 Compares to Competing Disposable Earplugs

Howard Leight Maximum Series — Full Lineup

Compatible Accessories and Paired Protection

The MAX-1 is designed for single use and carries no proprietary accessories. However, several complementary products in the WC Safety catalog extend the MAX-1 program:

• Earplug Dispensers: Howard Leight offers bulk dispensers compatible with the MAX-1 form factor, allowing controlled dispense on factory floors without workers carrying full boxes. See our ear plugs collection for available dispenser options.
• Dual Protection Earmuffs: For TWA exposures above 100 dB, pairing the MAX-1 with an over-the-ear earmuff provides an additional 5–10 dB safety margin. Browse our full hearing protection collection for earmuff options.
• PPE Program Integration: When issuing MAX-1 earplugs as part of a full PPE kit, see our PPE collection. For guidance on integrating hearing protection into a full safety program, see our OSHA Hearing Conservation Program Guide.

NRR, OSHA 29 CFR 1910.95, and ANSI S3.19 — What the MAX-1's Rating Actually Means

The Noise Reduction Rating (NRR) on any U.S. hearing protector is determined by laboratory testing under ANSI S3.19-1974. Subjects in a controlled acoustic environment test attenuation at nine one-third-octave bands; the NRR is derived from the statistical lower confidence limit of those measurements. Real-world attenuation consistently falls below the laboratory NRR — which is why OSHA and NIOSH both apply derating factors before using the NRR for compliance calculations.

OSHA 29 CFR 1910.95, the primary federal standard governing occupational noise exposure, applies the following derating method: Effective Attenuation = (NRR − 7) ÷ 2. For the MAX-1's NRR 33: (33 − 7) ÷ 2 = 13 dB. This is the minimum OSHA will recognize. Applied to a 105 dB TWA environment: 105 − 13 = 92 dB — still above OSHA's 90 dB PEL, which means supplemental controls or dual protection would be required at that level. At 103 dB TWA: 103 − 13 = 90 dB — exactly at the PEL.

NIOSH uses a more conservative 50% reduction of the raw NRR: 33 × 0.5 = 16.5 dB estimated real-world attenuation. At 105 dB: 105 − 16.5 = 88.5 dB — just below the PEL. The practical takeaway: if your measured TWA is above 100 dB, you should either verify fit with individual fit testing (IFT) or add a complementary earmuff. See our NRR Hearing Protection Guide for a full derating table. For foam earplug comparisons including alternative brands, see our Best Foam Earplugs for Manufacturing guide.

The MAX-1 is ANSI S3.19 compliant, the standard that governs how the NRR is calculated and displayed on U.S. hearing protectors. Its NRR 33 is among the highest values that this test methodology can yield for a disposable foam earplug form factor. For additional context comparing disposable to reusable formats, see our Reusable vs. Disposable Earplugs guide.

Total Cost of Ownership — Disposable MAX-1 vs. Reusable Alternatives

At $41.16 per 200-pair box (approximately $0.21 per pair), the MAX-1's operating cost is straightforward for programs that track per-pair consumption. Compare against reusable earplugs, which have a lower per-pair price but accumulate sanitization cost, replacement cost for degraded foam, and loss cost:

• Disposable MAX-1 at 1 pair/worker/shift, 250 shifts/year, 10 workers: 2,500 pairs/year × $0.21 = $525/year. No sanitization labor.
• Reusable earplug program at same headcount: Lower material cost per pair, but add sanitization supplies, supervisory inspection time, and replacement for foam that no longer rebounds. Total cost is typically comparable for crews of under 20 workers.
• Break-even point: For crews of 20 or more workers on multi-shift schedules, reusable programs typically become more cost-effective. The MAX-1's 200-pair box format is designed for exactly this range — bulk supply without inventory complexity.

If your facility already has a dispenser program or accesses ANSI fit testing, the investment in reusable earplugs with documented fit data may be warranted. For guidance on that transition, see our Best Earplugs for Work guide and the Best Moldex Earplugs guide for reusable alternatives.

Final Verdict

The Howard Leight Maximum MAX-1 is, by the numbers, the most protective uncorded disposable foam earplug in the WC Safety catalog. NRR 33 is the ceiling for bell-foam disposables under ANSI S3.19. The bell-shape geometry, low-pressure polyurethane, and closed-cell skin all address real workplace problems — canal retention, shift-long comfort, and dusty-environment hygiene — rather than marketing copy. The 200-pair format and sub-$0.25 per-pair price make it realistic for bulk crew programs at the highest noise exposures.

The caveats are real but manageable: foam density can vary within a box, the uncorded format excludes certain cleanroom and food-processing applications, and the roll-down technique requires training to achieve rated attenuation. None of these are disqualifying for the environments the MAX-1 is designed for. If your measured TWA is 90–103 dB and you need a documented, ANSI-certified maximum-attenuation disposable earplug, the MAX-1 is the answer. For broader hearing protection buying guidance, see our comprehensive industrial guide.

Frequently Asked Questions

What does NRR 33 mean on the Howard Leight MAX-1?

NRR 33 means the earplug was laboratory-tested under ANSI S3.19 and achieved a Noise Reduction Rating of 33 decibels. This is the highest NRR available for an uncorded disposable foam earplug in standard U.S. commercial distribution. Real-world attenuation is lower than 33 dB due to individual fit variation; OSHA applies (NRR − 7) ÷ 2 = 13 dB as the working estimate, while NIOSH uses 50% of NRR = 16.5 dB.

Is the MAX-1 compliant with OSHA 29 CFR 1910.95?

The MAX-1 is ANSI S3.19 certified and qualifies as hearing protection for OSHA 1910.95 hearing conservation programs. Whether the MAX-1 alone meets your compliance requirement depends on your measured TWA. Under OSHA's derating method, (33−7)÷2 = 13 dB effective attenuation. At 103 dB TWA: 103 − 13 = 90 dB — exactly at OSHA's PEL. Above 103 dB TWA, supplemental controls or dual protection are required.

How do I correctly insert the Howard Leight MAX-1?

Roll the earplug between your fingers into a tight, thin cylinder. Reach your opposite hand over your head and pull the ear up and back to straighten the canal. Insert the compressed plug deeply and hold it in place for 20–30 seconds while it expands. Release. The plug should be seated deeply with only a small portion visible. Incorrect insertion — particularly shallow insertion — is the primary reason users fail to achieve the rated NRR.

Can I reuse the MAX-1 earplugs?

No. The MAX-1 is a single-use disposable earplug. The foam loses rebound performance after the first compression-and-expansion cycle in the ear canal. Reusing foam earplugs also increases cross-contamination risk in industrial environments. Replace after each shift or whenever the plug becomes visibly contaminated. For a reusable Howard Leight alternative, see the Howard Leight Fusion reusable earplug.

What is the difference between the MAX-1 and the Laser Lite LL-1?

Both are uncorded Howard Leight foam disposables, but they differ in NRR and shape. The MAX-1 has NRR 33 and a bell-contour shape optimized for retention in average-to-large ear canals. The Laser Lite LL-1 has NRR 32 and a tapered body that fits more easily into narrower ear canals. Workers with smaller ear anatomy or sensitivity to the MAX-1's wider bell flare often prefer the Laser Lite. For a full comparison, see our Best Earplugs for Work guide.

Is the MAX-1 suitable for environments above 100 dB?

The MAX-1 provides the maximum single-earplug attenuation for a disposable foam. However, for exposures consistently above 100–105 dB TWA, NIOSH recommends dual protection: wear the MAX-1 simultaneously with an over-the-ear earmuff. The combined protection provides an additional 5–10 dB margin above the earplug alone. Visit our hearing protection collection for compatible earmuffs.

How many pairs are in a box of Howard Leight MAX-1?

The standard SKU (MAX-1) contains 200 pairs per box. At a per-pair cost of approximately $0.21, this is among the lowest cost-per-pair options for NRR 33 hearing protection. The box format is designed for dispenser programs or crew distribution at large job sites.

Does the MAX-1 come in a corded version?

Yes. The corded equivalent is the Howard Leight MAX-30 (NRR 30), which uses the same bell-foam formulation with a connecting cord. The cord allows retrieval if the plug backs out, making it the correct choice for food processing, pharmaceutical, or cleanroom environments where a loose plug creates a contamination concern.

What is the material of the Howard Leight MAX-1?

The MAX-1 is made of low-pressure polyurethane foam with a smooth, closed-cell outer skin. The polyurethane formulation expands slowly after roll-down insertion, minimizing ear canal pressure while forming a seal adequate for NRR 33 performance. The closed-cell skin resists dirt and debris accumulation in dusty industrial environments.

What shape are the MAX-1 earplugs?

Bell-shaped contour. The wider flare at the base anchors in the ear canal's outer curve, improving retention compared to straight-cylindrical foam plugs during head movement or equipment vibration. The taper toward the tip aids insertion. The bell shape is one reason the MAX-1 is preferred over cylindrical foam options in high-vibration environments such as heavy equipment operation.

Can the MAX-1 be worn with safety glasses?

Yes. Unlike earmuffs, foam earplugs do not interact with safety glass temples. The MAX-1 creates its seal inside the ear canal and is entirely unaffected by eyewear. Workers who need to wear face shields, safety glasses, or hard hats simultaneously will find the uncorded earplug format the most compatible with other PPE. For full PPE program guidance, see our PPE collection.

How does the MAX-1 compare to Moldex earplugs at NRR 33?

Moldex's highest-rated disposable foam earplug, the Pura-Fit, also carries NRR 33. The primary differences are shape and density profile: the MAX-1 uses a bell contour while the Pura-Fit uses a tapered bullet shape. Some workers find the Pura-Fit easier to insert without the full roll-down technique; others prefer the MAX-1's bell retention. Our Best Moldex Earplugs guide compares the full Moldex lineup. See also our Best Foam Earplugs for Manufacturing guide for a cross-brand comparison.

Are these earplugs suitable for sleeping or non-industrial use?

The MAX-1 can be used for non-industrial noise reduction (sleeping, shooting sports, loud events) but its NRR 33 and bulk 200-pair format are optimized for occupational programs. For individual buyers seeking an earplug primarily for sleep or consumer use, a softer, lower-pressure foam in a smaller package may be more appropriate. The MAX-1 works, but it is industrial-grade by design.

What color is the MAX-1 earplug?

Orange. The orange color provides moderate visibility for insertion verification by supervisors during safety audits. For environments where high-contrast supervisor visibility checks are a priority, the magenta/yellow Laser Lite LL-1 color scheme may be preferable.

Do the MAX-1 earplugs expire?

Howard Leight does not publish a shelf-life expiration for the MAX-1 under normal storage conditions (cool, dry, away from direct sunlight and chemical contaminants). Polyurethane foam can degrade if exposed to UV light, ozone, or solvents over extended periods. If stored correctly in the original sealed packaging, a 200-pair box should retain full performance for several years.

Where can I find more detail on building a hearing conservation program around the MAX-1?

Our OSHA Hearing Conservation Program Guide covers TWA measurement, audiometric testing requirements, training documentation, and protector selection methodology under 29 CFR 1910.95. Our Best Hearing Protection for Industrial Workers guide addresses broader protector type selection across earmuffs, foam plugs, and banded options.

Written by Steven Eaton — Safety Equipment Specialist, WC Safety. Steven sources and reviews industrial PPE for the WC Safety catalog with a focus on ANSI-certified hearing and respiratory protection. He applies OSHA 29 CFR 1910.95 and ANSI S3.19 compliance frameworks in all hearing protection assessments.

Reviewed by the WC Safety Editorial Team. Published: June 2026.

Methodology: Specifications sourced from the WC Safety product listing for the Howard Leight MAX-1 (Shopify product ID 7896661983320) and cross-referenced against ANSI S3.19 and OSHA 29 CFR 1910.95 requirements. NRR derating calculations use both OSHA's (NRR − 7) ÷ 2 method and NIOSH's 50% derating convention. Customer feedback reflects verified purchaser reviews available on the product page. No manufacturer compensation was received for this review. Amazon links use the WC Safety affiliate tag (wcsafety04-20) per our standard disclosure policy.