The 3M™ Foam Earplugs 1100 offer dependable, comfortable hearing protection with a Noise Reduction Rating (NRR) of 29 dB. Made from soft, hypoallergenic polyurethane foam, these uncorded earplugs feature a tapered shape that conforms gently to the ear canal, creating an effective acoustic seal. Their slow-recovery design allows for easy roll-down insertion and a secure fit. Certified to CSA Class AL, these disposable earplugs are a trusted solution for workers exposed to intermittent or continuous industrial noise across various sectors.

Key Features

Noise Reduction Rating (NRR): 29 dB Helps protect against high-noise exposure up to 101 dBA.
Certified CSA Class AL: Compliant with Canadian safety standards for industrial hearing protection.
Tapered, One-Size Design : Fits most ear canal sizes comfortably while ensuring a snug seal.
Soft, Hypoallergenic Foam : Reduces pressure inside the ear canal and enhances wearability.
Slow-Recovery Polyurethane Foam : Allows for controlled expansion and proper placement during insertion.
Dielectric Construction : Safe for use in electrically sensitive environments.
Fit-Test Compatible : Compatible with the 3M™ E-A-Rfit™ Dual-Ear Validation System to confirm proper seal and fit.
Individually packaged in pillow packs : Ensures hygiene and portability (when applicable to packaging format).

Intended Use

Suitable for noisy work environments across sectors such as construction, metal fabrication, oil & gas, military maintenance, general manufacturing, transportation, and more. The 1100 model is ideal for workers performing grinding, welding, blasting, painting, machine operation, and facility maintenance where consistent hearing protection is essential.

Product Specifications

Product Number: 1100
3M ID / SAP ID: 7100099847
Legacy SKU: HC000664637
Style: Roll-down, uncorded
Material: Polyurethane slow-recovery foam
Shape: Tapered
Color: Orange
Corded: No
Reusable: No
Metal Detectable: No
Dielectric: Yes
Moisture Resistant: No
Roll-Down Required: Yes
Size: One size fits most
Fit Verification: E-A-Rfit™ compatible
NRR: 29 dB
Packaging: 200 pairs per carton

Certifications and Standards

CSA Class AL – Certified for high-performance hearing protection
ANSI S3.19-1974 – Complies with U.S. EPA rating standards for NRR 29 dB