Hearing Protection Finder · 320 products, every brand we carry

Hearing Protection, NRR 30 and above

126 hearing protection, NRR 30 and above from every brand we carry, listed with what each manufacturer publishes, and live prices.

Pick a type, style or brand; the list below narrows as you choose. Prices are live.

PIP 267-HPF810D Earplugs, Food Pro Bullet Plus Metal Detectable Soft

By type

Earplugs (166)Earmuffs (101)

By nrr

Hearing Protection, NRR 30 and above (126)Hearing Protection, NRR 25–29 (101)Hearing Protection, NRR 20–24 (33)

By nrr and type

Earplugs, NRR 30 and above (97)Earplugs, NRR 25–29 (51)Earmuffs, NRR 25–29 (40)Earmuffs, NRR 20–24 (30)

126 products

Ratings and specifications are as published by each manufacturer. Tap a group to open it.

Earplugs97 products

Open the Earplugs page

3M E-A-R Classic Plus Foam Earplugs, Foam, Yellow — 3M · NRR: 33 · Style: Uncorded · Material: PVC foam · Standards: CSA Class AL
3M E-A-R Skull Screws Earplugs — 3M · NRR: 32 · Style: Corded; Uncorded · Material: PU foam
3M E-A-Rsoft FX Earplugs — 3M · NRR: 33 · Style: Corded; Uncorded · Material: PU foam
3M E-A-Rsoft SuperFit Earplugs — 3M · NRR: 33 · Style: Corded; Uncorded · Material: PU foam
3M E-A-Rsoft SuperFit Metal Detectable Corded Earplugs — 3M · NRR: 32 · Style: Metal Detectable Corded; Corded · Material: PU foam
3M E-A-Rsoft Yellow Neon Blasts Foam Earplugs, Polyurethane, Yellow — 3M · NRR: 33 · Style: Corded · Material: PU foam
3M E-A-Rsoft Yellow Neons Earplugs, Polyurethane, Yellow — 3M · NRR: 33 · Style: Uncorded · Material: PU foam · Standards: CSA Class AL
3M E-A-Rsoft Yellow Neons Foam Earplugs — 3M · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Standards: CSA Class AL
Cordova Safety EPFC01 Encore Corded Foam Earplugs, NRR 33, 100 Pairs — Cordova Safety · NRR: 33 · Style: Corded earplug · Material: Polyurethane Foam · Standards: ANSI S3.19-1974; EN 352-2
DEWALT DPG63BG50 DPG63 Orange Bell NRR33 Foam Earplugs, Uncorded — DEWALT · NRR: 33 · Style: Uncorded earplug · Use: No
Howard Leight FirmFit FF-1-D Earplugs, Cylinder Shape Disposable PVC Foam Ear — Howard Leight · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight FirmFit FF-30 Earplugs, Cylinder Shape Disposable PVC Foam Corded — Howard Leight · NRR: 30 · Style: Corded earplug · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight FirmFit HL400-FF-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight FirmFit HL400-FF-INTRO-AM Earplug Parts & Accessories — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight LPF MAXIMUM LITE Disposable Earplugs — Howard Leight · NRR: 30 · Style: Corded; Uncorded · Material: PU foam · Use: Disposable
Howard Leight Laser Lite Disposable Earplugs — Howard Leight · NRR: 32 · Style: Corded; Uncorded · Material: PU foam · Use: Disposable
Howard Leight Laser Lite HL400-LL-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 32 · Standards: CSA Z94.2 A(L)
Howard Leight Laser Lite HL400-LL-INTRO-AM Earplug Parts & Accessories — Howard Leight · NRR: 32 · Standards: EN 352 --EN352-2: Earplugs--
Howard Leight Laser Lite LL-30-REFILL Earplugs, T-Shape Disposable Soft — Howard Leight · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Laser Lite LL-5 Earplugs, T-Shape Disposable Soft Polyurethane — Howard Leight · NRR: 32 · Use: Disposable
Howard Leight Laser Lite LL-5-30 Earplugs, T-Shape Disposable Soft Polyurethane — Howard Leight · NRR: 32 · Use: Disposable
Howard Leight Laser-Trak HL400-LT-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 33 · Standards: EN 352 --EN352-2: Earplugs--
Howard Leight Laser-Trak LT-5-30 Earplugs, Metal Detectable T-Shape Disposable — Howard Leight · NRR: 33 · Use: Disposable
Howard Leight Maximum HL400-MXM-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 33 · Standards: CSA Z94.2 A(L)
Howard Leight Maximum HL400-MXM-INTRO-AM Earplug Parts & Accessories — Howard Leight · NRR: 33 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite HL400-LPF-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite HL400-LPF-INTRO-AM Earplug Parts & Accessories — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite LPF-5 Earplugs, T-Shape Disposable Soft Polyurethane — Howard Leight · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite LPF-5-30 Earplugs, T-Shape Disposable Soft, NRR 30 — Howard Leight · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum MXM-1 Earplugs, Disposable Soft Polyurethane Foam Ear Plug — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Maximum MXM-1-D Earplugs, Disposable Soft Polyurethane Foam Ear — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Maximum MXM-30 Earplugs, Disposable Soft Polyurethane Foam Corded — Howard Leight · NRR: 33 · Style: Corded earplug · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Maximum MXM-30-REFILL Earplugs, Disposable Soft Polyurethane Foam — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Maximum MXM-5-30 Earplugs, Disposable Soft Polyurethane Foam — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight Maximum MXM-5-H5 Earplugs, Disposable Soft Polyurethane Foam Ear — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight R-01757 Super Leight For Women Pre-Shaped Foam Earplugs Retail — Howard Leight · NRR: 30
Howard Leight TrustFit Plus HL400-TFPLUS-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 31 · Standards: CSA Z94.2 A(L)
Howard Leight TrustFit Plus TF-PLUS-1 Earplugs, Reusable Soft Polyurethane Foam — Howard Leight · NRR: 31 · Use: Reusable · Standards: CSA Z94.2 A(L)
Howard Leight TrustFit Plus TF-PLUS-30 Earplugs, Reusable Soft Polyurethane — Howard Leight · NRR: 31 · Use: Reusable · Standards: CSA Z94.2 A(L)
Howard Leight TrustFit Plus TFPLUS-30-REFILL Earplug Parts & Accessories — Howard Leight · NRR: 31 · Standards: CSA Z94.2 A(L)
Howard Leight X-Treme HL400-XTR-30-AM Earplug Parts & Accessories — Howard Leight · NRR: 32 · Standards: CSA Z94.2 A(L)
Howard Leight X-Treme HL400-XTR-INTRO-AM Earplug Parts & Accessories — Howard Leight · NRR: 32 · Standards: EN 352 --EN352-2: Earplugs--
Howard Leight X-Treme XTR-1 Earplugs, Disposable Soft Polyurethane Foam Ear — Howard Leight · NRR: 32 · Use: Disposable
Howard Leight X-Treme XTR-30 Earplugs, Disposable Soft Polyurethane Foam Corded — Howard Leight · NRR: 32 · Style: Corded earplug · Use: Disposable
Jackson Safety 6721 H10 Disposable Earplugs — Jackson Safety · NRR: 31 · Style: Corded; Uncorded · Material: PU foam · Use: Disposable
Moldex 660 Camo Plugs Disposable Earplugs — Moldex · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Use: Disposable · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex 6615 SparkPlugs Metal Detectable Foam Earplugs, Blue, Corded — Moldex · NRR: 33 · Style: Metal Detectable with Cord · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex 662 Goin' Green Foam Earplugs — Moldex · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex 6650 Softies Foam Earplugs, Foam, Orange — Moldex · NRR: 33 · Style: Corded · Material: PU foam · Standards: ANSI S3.19-1974; CSA
Moldex 6820 Earplugs, Mellows Foam Ear Plugs, Polyurethane — Moldex · NRR: 30 · Style: Uncorded · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex Glide 694 Foam No Roll Twist-In Earplugs — Moldex · NRR: 30 · Style: Corded; Uncorded · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex M6604 SparkPlugs Uncorded Foam Earplugs, NRR 33, 200 Pairs — Moldex · NRR: 33 · Style: Uncorded earplug · Material: Foam · Standards: ANSI S3.19-1974
Moldex M6800 Pura-Fit Uncorded Foam Earplugs, NRR 33, 200 Pairs — Moldex · NRR: 33 · Style: Uncorded earplug · Material: Foam · Standards: ANSI S3.19-1974
Moldex Meteors Disposable Earplugs — Moldex · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Use: Disposable · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex Pura-Fit Foam Earplugs — Moldex · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex Soothers 6680 Moisturizing Disposable Earplug, Soft Foam, Blue/Green — Moldex · NRR: 33 · Style: Disposable; Uncorded · Material: PU foam · Use: Disposable · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
Moldex SparkPlugs Foam Earplugs — Moldex · NRR: 33 · Style: Corded; Uncorded · Material: PU foam · Standards: ANSI S3.19-1974; AS/NZS 1270:2002
PIP 267-HPD510-500 Earplug Parts & Accessories, Prefilled Mega T-Fit Ear Plug — PIP · NRR: 32 · Standards: CSA Z94.2 A(L)
PIP 267-HPD810-500 Earplug Parts & Accessories, Prefilled Mega Bullet Plus Ear — PIP · NRR: 33
PIP 267-HPD910-400 Earplug Parts & Accessories, Prefilled Mega Flare Plus Ear — PIP · NRR: 33
PIP 267-HPF810D Earplugs, Food Pro Bullet Plus Metal Detectable Soft — PIP · NRR: 33
PIP 267-HPF910D Earplugs, Food Pro Flare Plus Metal Detectable Soft Polyurethane — PIP · NRR: 33
PIP EZ-Twist 267-HPF610 Earplugs, Disposable Soft Polyurethane Foam Ear Plugs — PIP · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP EZ-Twist 267-HPF610C Earplugs, Disposable Soft Polyurethane Foam Corded Ear — PIP · NRR: 30 · Style: Corded earplug · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Food Pro Bullet 267-HPF210D Earplugs, Metal Detectable Polyurethane Foam — PIP · NRR: 32 · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Food Pro EZ-Twist 267-HPF610D Earplugs, Metal Detectable Polyurethane Foam — PIP · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Bullet 267-HPF210 Earplugs, Disposable Soft Polyurethane Foam Ear Plugs — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Bullet 267-HPF210-1 Earplugs, Disposable Soft Polyurethane Foam Ear — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Bullet 267-HPF210C Earplugs, Disposable Soft Polyurethane Foam Corded — PIP · NRR: 32 · Style: Corded earplug · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Bullet Plus 267-HPF810 Earplugs, Disposable Soft Polyurethane Foam Ear — PIP · NRR: 33 · Use: Disposable
PIP Mega Bullet Plus 267-HPF810-1 Earplugs, Disposable Soft Polyurethane Foam — PIP · NRR: 33 · Use: Disposable
PIP Mega Bullet Plus 267-HPF810C Earplugs, Disposable Foam Corded Ear Plugs — PIP · NRR: 33 · Style: Corded earplug · Use: Disposable
PIP Mega Flare 267-HPF410 Earplugs, Tapered Disposable Soft Polyurethane Foam — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Flare 267-HPF410C Earplugs, Tapered Disposable Soft Polyurethane Foam — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega Flare Plus 267-HPF910 Earplugs, Disposable Soft Polyurethane Foam Ear — PIP · NRR: 33 · Use: Disposable
PIP Mega Flare Plus 267-HPF910-1 Earplugs, Disposable Soft Polyurethane Foam Ear — PIP · NRR: 33 · Use: Disposable
PIP Mega Flare Plus 267-HPF910C Earplugs, Disposable Foam Corded Ear Plugs — PIP · NRR: 33 · Style: Corded earplug · Use: Disposable
PIP Mega T-Fit 267-HPF510 Earplugs, T-Shape Disposable Soft Polyurethane Foam — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
PIP Mega T-Fit 267-HPF510-1 Earplug Parts & Accessories, T-Shape Disposable Soft — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L)
PIP Mega T-Fit 267-HPF510C Earplugs, T-Shape Disposable Soft Polyurethane Foam — PIP · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 EN352-2: Earplugs
Radians FP30 Detour 32 Disposable Foam Earplugs, Uncorded — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP31 Detour 32 Disposable Foam Earplugs, Corded — Radians · NRR: 32 · Style: Corded earplug · Use: No
Radians FP31MD Detour 32 Metal Detectable Foam Earplugs, Corded — Radians · NRR: 32 · Style: Corded earplug · Use: No
Radians FP34 Deterrent 32 Disposable Foam Earplugs, Uncorded — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP34BG50 Deterrent 32 Disposable Foam Earplugs, Uncorded, 50 Pair Bag — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP35 Deterrent 32 Disposable Foam Earplugs, Corded — Radians · NRR: 32 · Style: Corded earplug · Use: No
Radians FP70 Resistor 32 Disposable Foam Earplugs, Uncorded — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP71 Resistor 32 Disposable Foam Earplugs, Corded — Radians · NRR: 32 · Style: Corded earplug · Use: No
Radians FP74 Prohibitor Disposable Foam Uncorded Earplugs — Radians · NRR: 31 · Style: Uncorded earplug · Use: No
Radians FP75 Prohibitor Small Disposable Foam Corded Earplugs — Radians · NRR: 31 · Style: Corded earplug · Use: No
Radians FP80 Deviator 33 Disposable Foam Earplugs, Uncorded — Radians · NRR: 33 · Style: Uncorded earplug · Use: No
Radians FP81 Deviator 33 Disposable Foam Corded Earplugs — Radians · NRR: 33 · Style: Corded earplug · Use: No
Radians FP90 Deflector 33 Disposable Foam Uncorded Earplugs — Radians · NRR: 33 · Style: Uncorded earplug · Use: No
Radians FP91 Deflector 33 Disposable Foam Corded Earplugs — Radians · NRR: 33 · Style: Corded earplug · Use: No
Radians FP94 EVADER 33 Disposable Foam Earplugs, Uncorded — Radians · NRR: 33 · Style: Uncorded earplug · Use: No
Radians FP95 EVADER 33 Disposable Foam Earplugs, Corded — Radians · NRR: 33 · Style: Corded earplug · Use: No
Radians Resistor 32 Foam Earplugs Bag, Uncorded — Radians · NRR: 32 · Style: Uncorded earplug

Earplug Parts & Accessories26 products

3M Earplug Parts & Accessories, E-A-R One Touch Earplug Dispensers, Polyurethane — 3M · NRR: 33 · Style: Uncorded · Material: PU foam
DEWALT DPG63TC5 Earplug Parts & Accessories, DPG63 Bell Shape Disposable Foam — DEWALT · NRR: 33 · Use: No
DEWALT DPG65TC2 Earplug Parts & Accessories, DPG65 Bell Shape Disposable Foam — DEWALT · NRR: 33 · Use: No
Howard Leight Earplug Dispenser Refills — Howard Leight · NRR: 32 · Style: Uncorded; Disposable · Material: PU foam
Howard Leight FirmFit HL400-FF-REFILL Earplugs, Prefilled Ear Plugs Refill — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Laser Lite HL400-LL-REFILL Earplugs, Prefilled Ear Plugs Refill — Howard Leight · NRR: 32 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum HL400-MXM-REFILL Earplugs, Prefilled Ear Plugs Refill — Howard Leight · NRR: 33 · Standards: CSA Z94.2 A(L)
Howard Leight Maximum Lite HL400-LPF-REFILL Earplugs, Prefilled Ear Plugs Refill — Howard Leight · NRR: 30 · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite LPF-30-REFILL Earplugs, T-Shape Disposable Foam — Howard Leight · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum Lite LPF-LS4-REFILL Earplugs, T-Shape Disposable Foam — Howard Leight · NRR: 30 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight Maximum MXM-LS4-REFILL Earplugs, Disposable Soft Polyurethane Foam — Howard Leight · NRR: 33 · Use: Disposable · Standards: CSA Z94.2 A(L); EN 352 --EN352-2: Earplugs--
Howard Leight X-Treme HL400-XTR-REFILL Earplugs, Prefilled Ear Plugs Refill — Howard Leight · NRR: 32
Howard Leight X-Treme XTR-30-REFILL Earplugs, Disposable Soft Polyurethane Foam — Howard Leight · NRR: 32 · Use: Disposable · Standards: CSA Z94.2 A(L)
Howard Leight X-Treme XTR-LS4-REFILL Earplugs, Disposable Soft Polyurethane Foam — Howard Leight · NRR: 32 · Use: Disposable
Moldex PlugStation Earplug Parts & Accessories, Earplug Dispensers — Moldex · NRR: 33 · Style: PlugStation® Earplug Dispenser · Material: 100% PVC-Free Disposable Foam Earplugs; Disposable Plastic Bottle
PIP 267-HPDR510-500 Earplugs, Prefilled Mega T-Fit Ear Plug Refill Canister — PIP · NRR: 32 · Standards: CSA Z94.2 A(L)
PIP 267-HPDR810-500 Earplugs, Prefilled Mega Bullet Plus Ear Plug Refill — PIP · NRR: 33
PIP 267-HPDR910-400 Earplugs, Prefilled Mega Flare Plus Ear Plug Refill Canister — PIP · NRR: 33
Radians FP34-B250 Deterrent 32 Disposable Uncorded Earplug Dispenser Refill — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP34-B500 Deterrent 32 Disposable Uncorded Earplug Dispenser Refill — Radians · NRR: 32 · Style: Uncorded earplug · Use: No
Radians FP70-B250 Resistor 32 Foam Uncorded Earplug Dispenser Refill, 250 Pair — Radians · NRR: 32 · Style: Uncorded earplug
Radians FP70-B500 Resistor 32 Foam Uncorded Earplug Dispenser Refill, 500 Pair — Radians · NRR: 32 · Style: Uncorded earplug
Radians FP90-B500 Deflector Foam Uncorded Earplug Dispenser Refill, 500 Pair — Radians · NRR: 33 · Style: Uncorded earplug · Use: No
Radians FP94-B500 EVADER Foam Uncorded Earplug Dispenser Refill, 500 Pair — Radians · NRR: 33 · Style: Uncorded earplug
Radians FPD-500L30 Earplug Parts & Accessories, Refillable Dispenser, 500 Pair — Radians · NRR: 32 · Use: No
Radians FPD-500L70 Earplug Parts & Accessories, Refillable Dispenser, 500 Pair — Radians · NRR: 32 · Use: No

Earmuffs3 products

Howard Leight Impact Pro 1030943 Over-The-Head Electronic Earmuffs, NRR 30 — Howard Leight · NRR: 30 · Style: Earmuff · Standards: EN 352 --EN352-1: Earmuffs (Passive)--
JSP Sonis 3 262-AEB040-HB Earmuffs, Passive Ear Muff, Adjustable Headband — JSP · NRR: 31 · Style: Earmuff
Kask WHP00006 Hard Hat Accessories, SC3 Helmet-Mounted Earmuffs, NRR 31 — Kask · NRR: 31 · Style: Earmuff

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In plain words. NRR is the Noise Reduction Rating printed on the package, in decibels, from a laboratory test the manufacturer has done under EPA rules. A higher number means more reduction in the test. OSHA, when it checks whether hearing protection is enough for a job, subtracts 7 from the NRR (for the way noise is measured) and may halve what is left to allow for real-world fit; so an NRR 33 plug is treated as about 13 dB of protection in that calculation. The types are corded and uncorded earplugs, banded earplugs, and earmuffs that go over the head or mount on a hard hat.

Technical. NRR per 40 CFR Part 211 Subpart B (EPA), tested to ANSI S3.19-1974; OSHA 29 CFR 1910.95 Appendix B derating (NRR minus 7, with a further 50% reduction applied by OSHA policy for engineering-control comparisons). CSA Z94.2 classes (A, B, C, with L for low-frequency) and EN 352 SNR values appear on dual-marked products. Values shown are the manufacturer's.

Ratings and specifications on this page are shown as published by the manufacturer or the named standard and describe performance in that standard's test. They are not a recommendation for any task. The employer's hazard assessment decides what protective equipment a job needs. Verify details against the manufacturer's current documentation before you buy.

The standard at a glance

Copied from the named standard or regulation and shown with its source; nothing in these tables is Bayshore's recommendation.

OSHA method for comparing an NRR to a noise exposure

Step (29 CFR 1910.95 Appendix B)	Example, NRR 33 earplug
Subtract 7 dB from the NRR (A-weighted measurement)	33 − 7 = 26 dB
OSHA policy for engineering-control comparisons: reduce the result by 50%	26 × 0.5 = 13 dB
Protection credited	About 13 dB in that calculation

Source: OSHA 29 CFR 1910.95 Appendix B; NRR test method per EPA 40 CFR Part 211 Subpart B (ANSI S3.19-1974).

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