ACOUSTIC FILTERmembrane · 125–8000 HzMED-GRADE SILICONEtriple-flange · hypoallergenicNRR 33 dBTPE COREthermoplastic elastomer33 dB NRRANSI S3.19 · OSHA 29 CFR 1910.95 · CE EN 352-2ZERO ASTERISKS
ANSI S3.19 Certified

33 dB NRR.
ZeroCompromise.

Industrial-grade hearing protection engineered for environments where failure is measured in permanent hearing loss — not warranty claims.

33 dB
NRR Rating
380+
Facilities
4M+
Units Deployed
CERTIFIED:OSHAANSI S3.19CE EN 352-2NIOSH
Scroll to spec
Close-up of industrial triple-flange silicone earplugs on gunmetal surface
PASSIVE EARPLUG
33 dB
EP-33 · SHIELD PPE

EP-33 Triple-Flange

The baseline that outperforms everything else in its class.

33 dB
Noise Reduction Rating

Best-in-class NRR without foam degradation over time.

Attenuation Curve (dB)ANSI S3.19
125
250
500
1k
2k
4k
8k
125 Hz8 kHz
Technical Specifications
NRR Rating33 dB
MaterialMedical-Grade Silicone + TPE
FlangesTriple (3-tier)
Stem MaterialThermoplastic Elastomer
Acoustic FilterIntegrated membrane
ReusableYes — 500+ insertion cycles
Cord OptionDetachable SS tethered
SizesS / M / L / XL
ANSI S3.19OSHA 29 CFRCE EN 352-2NIOSH
Request Volume Pricing

380+

Industrial facilities trust Shield as their primary PPE specification


Industrial electronic earmuffs mounted on safety helmet in factory setting
ELECTRONIC EARMUFF
25 dB
EM-25 · SHIELD PPE

EM-25 ProShield

Situational awareness preserved. Impulse noise eliminated.

25 dB
Noise Reduction Rating

Impulse noise clamped at 82 dB — press brake, nail gun, or pneumatic drill.

Attenuation Curve (dB)ANSI S3.19
125
250
500
1k
2k
4k
8k
125 Hz8 kHz
Technical Specifications
NRR Rating25 dB
Attenuation TypeActive + Passive hybrid
Battery Life300 hrs (AAA x2)
Auto-Shutoff4-hour timeout
Ambient Boost4× voice amplification
Impulse Limit82 dB peak clamp
HeadbandStainless steel arc
Weight312 g
ANSI S3.19OSHA 29 CFRCE EN 352-2MIL-STD-1474
Request Volume Pricing

4,000+

Workers protected daily across petrochemical, automotive, and heavy manufacturing


Custom-molded hearing protection device shown in precision foam case
CUSTOM-MOLDED
37 dB
CM-37 · SHIELD PPE

CM-37 Precision Fit

Every ear canal is unique. This one was made for yours.

37 dB
Noise Reduction Rating

Highest NRR in the Shield line. Mandatory fit-testing documentation included.

Attenuation Curve (dB)ANSI S3.19
125
250
500
1k
2k
4k
8k
125 Hz8 kHz
Technical Specifications
NRR Rating37 dB
Fit MethodAudiologist impression + CNC mill
MaterialMedical-grade acrylic / silicone
Filter Options15 dB / 25 dB / flat-response
Service Life5–8 years typical
Turnaround10 business days
MOQ50 units (bulk pricing at 500+)
MarkingLaser-engraved employee ID
ANSI S3.19OSHA 29 CFRCE EN 352-2ISO 4869-1
Request Volume Pricing

Certification Matrix

Every certification.
No exceptions.

Shield documentation packages include test reports, attenuation certificates, and audit-ready compliance files — not just the badge.

ANSI S3.19
American National Standard
ANSI / ASA

Method for measuring the real-ear attenuation of hearing protectors

OSHA 29 CFR 1910.95
Occupational Noise Exposure
US Dept. of Labor

Hearing conservation program compliance for general industry

CE EN 352-2
European Standard
CEN / CENELEC

Hearing protectors — earplugs — safety requirements and testing

ISO 4869-1
Acoustics Standard
ISO TC 43

Subjective method for measurement of sound attenuation

NIOSH
Recommended Exposure Limit
CDC / NIOSH

National Institute for Occupational Safety and Health approval

MIL-STD-1474
Military Standard
US DoD

Noise limits for military materiel — EM-25 ProShield only

Deployed where decibels are measured
in permanent hearing loss.

Petrochemical
0+
Workers protected
95–130 dB
Automotive OEM
0+
Workers protected
85–115 dB
Heavy Manufacturing
0+
Workers protected
90–120 dB
Mining & Extraction
0+
Workers protected
100–135 dB

B2B Partnerships

Ready to spec Shield
across your facilities?

EHS directors at facilities managing 500+ workers get dedicated account support, volume pricing, and fit-testing documentation within 48 hours.

Request Distributor Pricing
Response within 1 business day · No commitment required

No commitment. No spam. Response within 1 business day.

Full Spec Catalog
PDF · 48 pages · Rev. 2026.01

Complete attenuation data, material certifications, and MSDS sheets for all Shield product lines.

1 business day response
Dedicated account manager assigned on submission
Free sample kit
All three product lines — EP-33, EM-25, CM-37
Fit-test documentation
OSHA-compliant records included at no cost
Private-label available
Your brand, our ANSI certification — MOQ 500 units

Direct Contact

Mon–Fri 7:00 AM – 6:00 PM CT