SUBJECT: CANADIAN STANDARDS ASSOCIATION (CSA) HEARING PROTECTION DEVICE RATINGS
ORIGIN: Moldex® Technical Services Department
DATE: February 2015
REVIEWED: February 2015
Overview
You will begin to see the CSA Class rating on some of our literature. This is a method of rating hearing protection devices that are used in Canada. It is a simple system which is based on the same laboratory tests that are performed on our hearing protectors to obtain NRRs in the United States. The system provides guidance to the user for choosing the appropriate hearing device for a certain level of noise exposure.
Each hearing protection device is rated A, B, or C. The A and B Class may also have an L associated with it. Therefore, the following Classes of hearing protectors are A, AL, B, BL, or C.
The L classification associated with Class A or B (i.e. AL or BL) means that the hearing protection device attenuates at least 20dBA when tested at 125Hz. This is an important factor when choosing hearing protection for low frequency noise.
Lex, 8h (dBA) | Recommended Class |
< | C |
> 90 (up to and including 95) | B or BL |
> (up to and including 105) | A or AL |
> 105 | Dual* |
* Dual hearing protection shall be used. A minimum of a Class B earmuff and a Class A earplug shall be used. See Z94.2-14 for details.
As always, these ratings, just like NRR, are to be used by the end user as a guide to selecting the proper hearing protection device. The Classes are based on laboratory tests and actual noise reduction achieved by any individual depends upon many factors including proper use of the device, training, maintenance, etc.
Moldex® HPD Part # |
Description |
NRR |
CSA Class |
6100 |
M1 Premium Earmuff |
29 |
AL |
6105 |
Hygiene Kit |
N/A |
N/A |
6109 |
Special Ops® M1 Premium Earmuff-Camo |
29 |
AL |
6120 |
MX-5 Earmuff |
27 |
AL |
6125 |
MX-5 Earmuff Hygiene Kit |
N/A |
N/A |
6130 |
MX-6 Earmuff |
30 |
AL |
6135 |
MX-6 Earmuff Hygiene Kit |
N/A |
N/A |
6200 |
M2 Multi-Position Earmuff |
26(OH) 24(BN,UC) |
A |
6201 |
Z2 Multi-Position Earmuff |
25(OH) 23(BN,UC) |
A |
6209 |
Special Ops® M2 Multi-Position Earmuff-Camo |
26 |
A |
6300 |
M3 Cap-Mount Earmuff |
24 |
A |
6400 |
Rockets® Reusable Ear Plugs – Uncorded |
27 |
AL |
6404 |
Rockets® Reusable Ear Plugs-Corded w/o Pocket-Pak® |
27 |
AL |
6405 |
Rockets® Reusable Ear Plugs-Corded |
27 |
AL |
6415 |
Rockets® Detectable Reusable Ear Plugs-Corded |
27 |
AL |
6420 |
Rockets® Reusable Ear Plugs-Cloth Corded |
27 |
AL |
6445 |
Glide® Trio |
27 |
AL |
6450 |
Jetz®, Uncorded |
27 |
BL |
6455 |
Jetz®, Corded |
27 |
BL |
6480 |
Special Ops® Rockets® Reusable Ear Plugs-Uncorded |
27 |
AL |
6485 |
Special Ops® Rockets® Reusable Ear Plugs-Corded |
27 |
AL |
6487T |
Small Replacement Tips, BattlePlugs® |
9/24 |
C/BL |
6488T |
Medium Replacement Tips, BattlePlugs® |
9/24 |
C/BL |
6489T |
Large Replacement Tips, BattlePlugs® |
9/24 |
C/BL |
6497 |
BattlePlugs®, Small |
9/24 |
C/BL |
6498 |
BattlePlugs®, Medium |
9/24 |
BL |
6499 |
BattlePlugs®, Large |
9/24 |
C/BL |
6490 |
Comets® Reusable Ear Plugs |
25 |
BL |
6495 |
Comets®, Corded |
25 |
BL |
6500 |
Rock Band® Canal Cap |
22 |
BL |
6504 |
Replacement Pods and Neck Cord for Jazz Band® |
N/A |
|
6506 |
Jazz Band® Canal Cap |
22 |
BL |
6600 |
Softies® Disposable Ear Plugs-Uncorded |
33 |
AL |
6604 |
SparkPlugs® Disposable Ear Plugs-Uncorded |
33 |
AL |
6608 |
Special Ops® Camo Plugs® Disposable Ear Plugs-Uncorded |
33 |
AL |
6609 |
Special Ops® Camo Plugs® Disposable Ear Plugs-Corded |
33 |
AL |
6615 |
SparkPlugs® Disposable Metal Detectable Ear Plugs-Corded |
33 |
AL |
6620 |
Goin’ Green® Disposable Ear Plugs-Uncorded |
33 |
AL |
6622 |
Goin’ Green® Disposable Ear Plugs-Corded |
33 |
AL |
6630 |
Meteors®, Small Ear Plugs-Uncorded |
28 |
AL |
6632 |
Meteors®, Small Ear Plugs-Corded |
28 |
AL |
6634 |
PlugStation® 250 Pairs of Meteors®, Small |
28 |
AL |
6644 |
PlugStation® 250 Pairs of SparkPlugs® |
33 |
AL |
6645 |
PlugStation® 500 Pairs of SparkPlugs® |
33 |
AL |
6646 |
PlugStation® 250 Pairs of Goin’ Green® |
33 |
AL |
6647 |
PlugStation® 500 Pairs of Goin’ Green® |
33 |
AL |
6648 |
Special Ops® PlugStation® 500 Pairs Camo Plugs® |
33 |
AL |
6650 |
Softies® Disposable Ear Plugs-Corded |
33 |
AL |
6654 |
SparkPlugs® Disposable Ear Plugs-Corded |
33 |
AL |
6770 |
Flip to Listen® Dual Mode Earplugs |
4/24 |
C/BL |
6800 |
Pura-Fit® Disposable Ear Plug-Uncorded |
33 |
AL |
6820 |
Mellows®, Uncorded |
30 |
AL |
6840 |
Mellows®, Corded |
30 |
AL |
6844 |
PlugStation® 250 Pairs of Pura-Fit® |
33 |
AL |
6845 |
PlugStation® 500 Pairs of Pura-Fit® |
33 |
AL |
6846 |
Mellows® PlugStation®, Small |
30 |
AL |
6847 |
Mellows® PlugStation®, Large |
30 |
AL |
6870 |
Meteors® Ear Plugs-Uncorded |
33 |
AL |
6875 |
PlugStation® 500 Pairs of Meteors® |
33 |
AL |
6880 |
SparkPlugs® PlugStation®, Corded |
33 |
AL |
6881 |
SparkPlugs®, Metal Detectable, PlugStation®, Corded |
33 |
AL |
6882 |
Pura-Fit®, PlugStation®, Corded |
33 |
AL |
6900 |
Pura-Fit® Disposable Ear Plug-Corded |
33 |
AL |
6940 |
Glide® Foam Twist-In Earplugs, without Cord |
30 |
AL |
6945 |
Glide® Foam Twist-In Earplugs, with Cord |
30 |
AL |
6970 |
Meteors® Ear Plugs-Corded |
33 |
AL |
WARNING: The information contained in this Tech Brief is dated and was accurate to the best of Moldex’s knowledge, on the date above. It is not meant to be comprehensive, nor is it intended to be used in place of the warning/use instructions that accompany Moldex respirators. Outside of the USA, check with all applicable and local government regulations.
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