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Deflector Disposable Foam Earplugs, NRR 33, Corded Box of 100

Deflector Disposable Foam Earplugs, NRR 33, Corded Box of 100

Radians

$31.87 CAD
$31.87 CAD
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30 in stock

FP91
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Radians Deflector 33 Disposable Foam Earplug

Tested according to ANSI specs S3.19-1974, Radians Made in the USA disposable foam earplugs feature soft, slow-recovery foam for extreme comfort and outstanding noise reduction to protect your hearing. They are easy to roll down and insert, and they expand slowly for a low-pressure fit in virtually any size ear canal. They are available in a corded and uncorded options.

Features

  • Tapered Bullet Shape
  • Offers a comfortable fit for virtually any ear canal
  • Extremely Soft Foam Plug
  • Provides a comfortable, low-pressure fit
  • Made in USA and assembled in Mexico
  • PVC Dielectric Cord
  • Meets ANSI S3.19-1974 standards
  • NRR 33 db
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    Product Product subtotal Quantity Price Product subtotal
    Deflector Disposable Foam Earplugs, NRR 33, Corded Box of 100
    Deflector Disposable Foam Earplugs, NRR 33, Corded Box of 100FP91
    Deflector Disposable Foam Earplugs, NRR 33, Corded Box of 100FP91
    $31.87CAD/ea    		 $0.00CAD
    		$31.87CAD/ea $0.00CAD

    Noise Reduction Ratings

    Understanding NRRs

    The Noise Reduction Rating (NRR) measures how much a hearing protection device (HPD) reduces sound levels in a lab test. However, it doesn't consider the loss of protection when HPDs aren't fitted properly or worn for the entire exposure time. For many users, the NRR printed on the label overestimates the actual protection in real-world situations.

    The NRR on the label is based on a lab test where the HPD is fitted on 10 different people by the tester. This method often results in high ratings, up to 33 dB. Research shows that these ratings are higher than what many users actually experience. Therefore, it's recommended to adjust the NRR before estimating the HPD's effectiveness.

    To adjust the NRR:

    1. Subtract 7 dB if noise is measured on the A-weighted decibel scale (dBA).
    2. Divide the result by 2. This is called "derating".

    In the future, a new method called the NRR (SF), or subject fit, will be used. In this method, subjects fit their own HPD according to the manufacturer's instructions. The NRR (SF) is usually a lower rating than the current NRR, and it may be closer to the actual performance of the HPD.

    Hearing Protection