Moldex® Australia - Hearing and Respiratory Protection

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SUBJECT: Canadian Standards Association (CSA) Hearing Protection Device Ratings
ORIGIN: Moldex^® Technical Services Department
DATE: Updated December 2006
REVIEWED: JFEB 2010

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.

CSA recommends that a:
*Class C device be used for noise levels of <90dBA
*Class B device be used for noise levels of <95dBA
*Class A device be used for noise levels of <105dBA

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.

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
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
6480	Special Ops™ Rockets® Reusable Ear Plugs-Uncorded	27	AL
6485	Special Ops™ Rockets® Reusable Ear Plugs-Corded	27	AL
6490	Comets® Reusable Ear Plugs	25	BL
6500	Rock Band® Canal Cap	22	BL
6504	Replacement Pods and Neck Cord for Jazz Band®	N/A
6505	Replacement Pods for Wave Band™	N/A
6506	Jazz Band® Canal Cap	22	BL
6508	Cool Cap® Canal Cap	22	BL
6509	Replacement Pods for Cool Cap®	N/A
6520	Wave 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®	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
6674	PlugStation® 250 Pairs of Goin’ Green Individual Box®	33	AL
6700	Traffic Cones® Foam Ear Plugs	23	AL
6744	PlugStation® 250 Pairs of Traffic Cones®	23	AL
6745	PlugStation® 500 Pairs of Traffic Cones®	23	AL
6794	PlugStation® 250 Pairs Pura-Cones®	29	AL
6795	PlugStation® 500 Pairs Pura-Cones®	29	AL
6800	Pura-Fit® Disposable Ear Plug-Uncorded	33	AL
6844	PlugStation® 250 Pairs of Pura-Fit®	33	AL
6845	PlugStation® 500 Pairs of Pura-Fit®	33	AL
6870	Meteors® Ear Plugs-Uncorded	33	AL
6875	PlugStation® 500 Pairs of Meteors®	33	AL
6900	Pura-Fit® Disposable Ear Plug-Corded	33	AL
6970	Meteors® Ear Plugs-Corded	33	AL
66201	Goin’ Green® Ear Plugs Blisterpack, 4 Pairs	33	AL
66204	Goin’ Green® Ear Plugs Blisterpack, 10 Pairs	33	AL
66205	Goin’ Green® Ear Plugs Blisterpack Clipstrip, 4 Pairs	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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Ideas that wear well.®

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Ideas that wear well.^®