Half Face Respirators

Reusable half facepiece or half mask respirators have a rubber face seal that covers the half the nose, including the nostrils, as well as the mouth. Half face respirators are designed to be used along with NIOSH-rated particulate filters and cartridges to provide respiratory protection from various airborne contaminants, such as vapors, gases, and particulates.   Different particulate filters or cartridges, or combination cartridges, are used depending on the specific airborne hazards the wearer is being exposed to.  We stock half facepiece respirators from the industry’s most well-known and trusted brands, including Honeywell North half masks, 3M 6000 Series half masks, and MSA half face masks. Do not see what you need or have questions? Please Contact Us.

View Grid List

3 Items

per page
Set Descending Direction
 
View Grid List

3 Items

per page
Set Descending Direction
 

How does a half face respirator work?

For a reusable half face respirator, or half facemask, to function correctly a good seal between the oral-nasal unit of the mask around the wearer's nose and mouth is necessary so that contaminated, or potentially contaminated air cannot be inhaled.

 

What different particulate filters and cartridges are used for which airborne hazards?

 

Filters:

  • MAGENTA – P100 PARTICULATE FILTER (99.97% minimum filter efficiency)
  • Cartridge & Filter Combination:
  • OLIVE & MAGENTA - Organic Vapor, Ammonia, Methylamine, Formaldehyde, Acid Gas Cartridge & P100 Filter
  • BLACK & MAGENTA - Organic Vapor Cartridge & P100 Filter
  • WHITE & MAGENTA - Acid Gas and Formaldehyde Cartridge & P100 Filter
  • YELLOW & MAGENTA - Organic Vapor and Acid Gas Cartridge & P100 Filter
  • GREEN & MAGENTA - Ammonia and Methylamine Cartridge & P100 Filter
  • OLIVE & MAGENTA - Mercury Vapor and Chlorine Cartridge & P100 Filte

Cartridges:

  • OLIVE - Organic Vapor, Ammonia, Methylamine, Formaldehyde and Acid Gas
  • BLACK - Organic Vapor Cartridge
  • WHITE - Acid Gas and Formaldehyde Cartridge
  • YELLOW - Organic Vapor and Acid Gas Cartridge
  • GREEN - Ammonia and Methylamine Cartridge
  • OLIVE - Mercury Vapor and Chlorine Cartridge

 

What is the difference between a “Bayonet” and “Threaded” connection type?

Particulate filters and vapor cartridges are installed in reusable half-mask or full-face respirators to filter out airborne contaminants.  Different brands of filters and cartridges have different connection designs that attach them securely to the appropriate face piece.  Filters and cartridges are compatible with a specific brand and mask model. For example, 3M filters and cartridges have a bayonet connection and fasten to 3M brand half and full-face respirators. Honeywell filters and cartridges have a threaded connection and fasten to Honeywell brand half and full-face respirators.

3M - A bayonet connection always lines-up with a pre-set orientation when locked in.  This is due to the design of the connection – a bayonet connector is comprised of a male part and a female part. The male part has at least two radially- extending lugs on its outer sidewall designed to engage with compatible openings located on an interior sidewall of the female part.

Honeywell - A threaded connection joins the filter cartridge to the face piece by means of threads.  This allows you to “screw” or “twist” the male and female threads together to form a tight connection. Threaded joints are the most common type of releasable connections, and when attached properly form a secure seal.

 

What is a NIOSH rating?

NIOSH is governed by the U.S. Center for Disease Control and Prevention (CDC) and stands for National Institute for Occupational Safety and Health.  After evaluation, testing and approval the NIOSH rating describes the ability of the device to protect the wearer from dust and liquid droplets in the air.

  • N95 – Filters at least 95% of airborne particles. Not resistant to oil.
  • Surgical N95 – A NIOSH-approved N95 respirator that has also been cleared by the Food and Drug Administration (FDA) as a surgical mask.
  • N99 – Filters at least 99% of airborne particles. Not resistant to oil.
  • N100 – Filters at least 99.97% of airborne particles. Not resistant to oil.
  • R95 – Filters at least 95% of airborne particles. Somewhat resistant to oil.
  • P95 – Filters at least 95% of airborne particles. Strongly resistant to oil.
  • P99 – Filters at least 99% of airborne particles. Strongly resistant to oil.
  • P100 – Filters at least 99.97% of airborne particles. Strongly resistant to oil.
© 2021, Safety Environmental Control, Inc. All Rights Reserved.