Description
The MSA 455299 is the W65 self-rescuer. Ships in 1–2 business days; most orders arrive in 3–7 business days. W65 Self-Rescuer: every part and NIOSH approval on one page.
MSA 455299 specifications
| Item | Manufacturer data |
|---|---|
| MSA part number | 455299 |
| MSA description | 455299 W65 Self-Rescuer |
Source: MSA W65 Self-Rescuer data sheet 10-00-10-MC; NIOSH letter TN-16083 (April 8, 2009); NIOSH Certified Equipment List (November 2026).
W65 Self-Rescuer system data
| Item | Manufacturer data |
|---|---|
| Type | escape (filter self-rescuer, carbon monoxide; mouthpiece) |
| Description | The W65 Self-Rescuer Respirator provides emergency respiratory protection against carbon monoxide gas resulting from underground fires or explosions. A one-time-use device for escape purposes only, it provides respiratory protection against carbon monoxide in otherwise respirable air; it should not be used in atmospheres containing less than 19.5 percent oxygen or in atmospheres containing other toxic gases and vapors. (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
| How | The W65 Self-Rescuer uses oxidation Hopcalite Catalyst to convert toxic carbon monoxide to non-toxic carbon dioxide. Filter unit consists of an outer course-dust filter and an inner fine-dust filter to remove dust particles, the Hopcalite Catalyst, and a drying agent to protect the catalyst from moisture. The respirator exceeds NIOSH specified service-life requirements of 60 minutes against 1% carbon monoxide in air 25 C, 95% RH, at a continuous flow rate of 32 liters per minute. (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
| Life | Total life of 15 years with an in-service life limited to ten years; In-service life starts when the unit is placed into a mine or underground for storage; however, if it has been used for emergency escape or if the seal is broken, it must be replaced with a new factory-sealed unit. (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
| Weight | Weighs only 2.2 lbs.; The entire assembly weighs approximately 1000 grams (2.2 lbs), and can be carried comfortably on the hip via a 1 3/8" wide integral belt loop. (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
| Case | Rugged stainless steel case; positive hermetic seal (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
| Approvals | TC-14G-082 (NIOSH letter TN-16083, April 8, 2009: extension of approval to TC-14G-082 to revise the model W65 Filter Self Rescuer (FSR)); CEL 14G-0082, For Protection Against: Carbon Monoxide |
| Warning | The W65 Self-Rescuer is an air-purifying device designed to protect the wearer from toxic carbon monoxide. It does not supply oxygen but functions to oxidize carbon monoxide to carbon dioxide with resulting reaction heat. Therefore, when the W65 Self-Rescuer is worn in an atmosphere containing carbon monoxide, the air entering the wearer's mouth will be hot and dry. ... the W65 Self-Rescuer should never be discarded because of discomfort from hot dry air. All air must be drawn through the W65 Self-Rescuer. (MSA W65 Self-Rescuer data sheet 10-00-10-MC) |
Source: MSA W65 Self-Rescuer data sheet 10-00-10-MC; NIOSH letter TN-16083 (April 8, 2009); NIOSH Certified Equipment List (November 2026).
MSA statements
The W65 Self-Rescuer uses oxidation Hopcalite Catalyst to convert toxic carbon monoxide to non-toxic carbon dioxide. Filter unit consists of an outer course-dust filter and an inner fine-dust filter to remove dust particles, the Hopcalite Catalyst, and a drying agent to protect the catalyst from moisture. The respirator exceeds NIOSH specified service-life requirements of 60 minutes against 1% carbon monoxide in air 25 C, 95% RH, at a continuous flow rate of 32 liters per minute. (MSA W65 Self-Rescuer data sheet 10-00-10-MC)
Total life of 15 years with an in-service life limited to ten years; In-service life starts when the unit is placed into a mine or underground for storage; however, if it has been used for emergency escape or if the seal is broken, it must be replaced with a new factory-sealed unit. (MSA W65 Self-Rescuer data sheet 10-00-10-MC)
The W65 Self-Rescuer is an air-purifying device designed to protect the wearer from toxic carbon monoxide. It does not supply oxygen but functions to oxidize carbon monoxide to carbon dioxide with resulting reaction heat. Therefore, when the W65 Self-Rescuer is worn in an atmosphere containing carbon monoxide, the air entering the wearer's mouth will be hot and dry. ... the W65 Self-Rescuer should never be discarded because of discomfort from hot dry air. All air must be drawn through the W65 Self-Rescuer. (MSA W65 Self-Rescuer data sheet 10-00-10-MC)
TC-14G-082 (NIOSH letter TN-16083, April 8, 2009: extension of approval to TC-14G-082 to revise the model W65 Filter Self Rescuer (FSR)); CEL 14G-0082, For Protection Against: Carbon Monoxide
Source: MSA W65 Self-Rescuer data sheet 10-00-10-MC; NIOSH letter TN-16083 (April 8, 2009).
Catalog data
| Item | Manufacturer data |
|---|---|
| Type | Self-Rescue Respirator |
| Resistance | Carbon Monoxide |
| Includes | Protective Steel Case |
Source: Manufacturer published product data as carried in our catalog.
The MSA W65 Self-Rescuer is a one-time-use escape respirator rated for carbon monoxide. It protects against carbon monoxide from an underground fire or explosion and ships in a protective steel case.
- Hopcalite pre-filter body material
- Rated for carbon monoxide resistance
- Escape-only, single-use device
- Includes a rugged stainless steel carrying case
Mining, tunneling and confined-space crews keep this unit on hand strictly for emergency escape; it is not rated for atmospheres below 19.5% oxygen or containing other toxic gases. Manufacturer item number: 455299. Sold individually.
MSA 455299 questions
What is the W65 Self-Rescuer for? The W65 Self-Rescuer Respirator provides emergency respiratory protection against carbon monoxide gas resulting from underground fires or explosions. A one-time-use device for escape purposes only, it provides respiratory protection against carbon monoxide in otherwise respirable air; it should not be used in atmospheres containing less than 19.5 percent oxygen or in atmospheres containing other toxic gases and vapors. (MSA W65 Self-Rescuer data sheet 10-00-10-MC)
How long does a W65 last? Total life of 15 years with an in-service life limited to ten years; In-service life starts when the unit is placed into a mine or underground for storage; however, if it has been used for emergency escape or if the seal is broken, it must be replaced with a new factory-sealed unit. (MSA W65 Self-Rescuer data sheet 10-00-10-MC)
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