Half-Mask Respirators
Half-Mask Respirators
Half-mask respirators are reusable, NIOSH-rated air-purifying devices that protect the respiratory tract from exposure to harmful substances including dust, fog, fumes, mist, smoke, sprays, vapors, gases, and particulates. Half-mask respirators fit over the nose and mouth but do not protect the eyes or upper part of the face. They are National Institute for Occupational Safety and Health (NIOSH)-rated and have an Occupational Safety and Health Administration (OSHA) Assigned Protection Factor (APF) of 10. They may be constructed of silicone, thermoplastic, or rubber materials to allow for repeated cleaning, disinfection, storage, and reuse.
Half-mask respirators are used with exchangeable cartridges or filters that are designed to eliminate specific particulate or chemical substances. Some masks are pre-assembled with permanently attached cartridges. Filters and cartridges are designed for specific respirators and are not interchangeable with every respirator model or type.*
Half-mask respirators are available in small, medium, and large sizes but may be available as combined, small/medium, or medium/large sizes. They can be worn with safety eyewear or prescription eyeglasses if they do not interfere with the sealing surfaces or head straps. They can also be worn with hard hats, hoods, or face shields and are available with standard or drop-down head harness options. The drop-down design allows workers to communicate outside a contaminated area without totally removing the respirator.
Standard and adjustable harnesses and straps are made of durable, flexible material such as polyester, elastic, nylon, or rubber for a secure fit. If the half-mask respirator has adjustable straps, users may adjust them without completely removing the respirator.
Half-mask respirators used in industrial settings feature an exhalation valve to allow exhaled air to escape through the valve. However, half-mask respirators with exhalation valves should not be used in surgical or medical settings because unfiltered air coming out of the exhalation valve may contaminate the environment.
OSHA requires half-mask respirator fit testing before use and on a consistent, annual basis thereafter. Wearers should inspect half-mask respirators before each use to determine whether or not the respirator is complete and undamaged and to verify that the sealing material properly adheres to the face.
*Regulatory compliance details and filter/cartridge compatibility can be obtained at the individual product level.
3M™ 7500 Series Reusable Half Facepiece Reusable Respirators
Half-mask respirators with enhanced comfort and visibility use a bayonet attachment system for twin lightweight filters to protect against gases, vapors and particulates.

3M™ 5000 Series Disposable Half-Facepiece Respirators
Preassembled respirators are maintenance-free and require no spare parts
3M™ Secure Click™ Half Facepiece Reusable Respirator
Secure Click™ style enables a quick and simple connection of filters and cartridges. Half-face respirator also comes equipped with speaking diaphragm for easy communication.
3M™ 6000 Series Half Face Mask Respirator
Half-face mask respirators 6000 Series are economical, low-maintenance, and extremely lightweight. Probed reusable respirator assembly 6000Q series are used for quantitative fit purposes only.
3M™ 6000 Series Resuable Half-Facepiece Respirators with Replaceable P100 Filters
Lightweight, low-maintenance respirators come equipped with replaceable P100 filters (Style 2091)
3M™ Rugged Comfort 6500 Series Half Facepiece Reusable Respirator
Half facepiece respirators are designed to help promote comfort, durability, and stability with a resilient, lightly textured silicone faceseal and strong body construction.
3M™ Rugged Comfort 6500 Series Quick Latch Half Facepiece Reusable Respirator
Rugged Comfort reusable respirator combines comfort, durability, and stability with an added quick latch mechanism to easily enable the mask to drop down from face without removing head straps.
3M™ 6000 Series Drop-Down Half Facepiece
Designed for workers who need to communicate frequently
MSA™ Advantage™ 420 Half-Mask Respirator
One-piece UniBond over-molded silicone facepiece helps eliminate possible leak paths
MSA™ Comfo™ and Comfo Classic™ Half-Mask Respirators
Available in Hycar™ rubber or silicone, Comfo™ series half-mask respirators feature a unique face seal design for a comfortable fit.
MSA™ Advantage™ 900 Elastomeric Half-Mask Respirators
An elastomeric half-mask respirator providing healthcare professionals, essential workers and first responders a secure protection solution with enhanced communication.
MSA™ Advantage™ 200 LS Half-Mask Respirators
Half-mask respirators offer maximum protection and high wearing comfort with its patented MultiFlex system. Ideal for applications where workers are exposed to various hazards such as high concentrations of fumes, mists and gases. Available in single or two-piece neckstrap.
Moldex™ 8000 Series Half-Mask Pre-Assembled Respirators, Organic Vapor Cartridges

Half-mask respirators conform to the contours of the face and feature an extra-wide seal that remains secure even while talking. Pre-assembled with 8100 Organic Vapor cartridges.
Online savings are available
Dentec Safety™ Comfort Air™ Series 400 Low Maintenance Respirators

Elastomeric half-mask respirators features a flexible sealing edge and multi-position cartridge attachment.
Online savings are available
Dentec Safety™ Comfort-Air™ Series 300 Half-Mask Respirators with R95 Filter Assembly

Thermoplastic respirators with R95 filter assembly are suitable for welding, dusts, and oil based particulate aerosols for up to 8 hours.
Dentec Safety™ Comfort-Air™ 400Nx Half-Mask Elastomeric Respirator

Comfort-Air™ 400Nx half-mask elastomeric respirator assemblies do not include cartridges. Can be used in conjunction with a N95 or P100 filter to provide protection against non-oil based particulate aerosols and COVID viruses.
Honeywell™ North™ HM500 Series Half Mask
Threaded half-mask is lightweight, durable and soft with easy operation features. Filters and cartridges not included.
Honeywell™ North™ HM500 Series Half Mask
Threaded half-mask is lightweight, durable and soft with easy operation features. Filters and cartridges not included.
Dentec Safety™ Comfort-Air™ Series 100 Respirators with P100 Diskit™ P100 Filters

Silicone reusable respirators with Diskit™ P100 filters feature a 3-position adjustment to maximize compatibility with eye and face protection. Suitable for use when working with toxic dusts, mists, fumes, welding and asbestos.
Dentec Safety™ Comfort-Air™ P100 Complete Half-Mask Respirator Assembly

P100 complete assembly half-mask respirators feature a 3-position adjustment to maximize compatibility with eye and face protection. Suitable for use when working with toxic dusts, mists, fumes, welding and asbestos.
Dentec Safety™ Series 300 Thermoplastic Facepiece Respirators with P100 Cartridges

High efficiency P100 thermoplastic respirators are suitable for toxic dusts, mists and fumes, lead dusts and fumes, brake dusts, exotic welding, glass fibers, and asbestos (Note: Specific limitations apply for asbestos removal, see OSHA 1910.1001).
Dentec Safety™ Comfort-Air™ Series 100 Half-Face Respirators with N95 Filter Assembly

Silicone half-mask respirators with N95 filter assembly are suitable for welding, dusts and non-oil mists.
Dentec Safety™ Comfort-Air™ Series 100 Half-Mask Respirators with OV/R95 Filter Assembly

Silicone organic vapor/R95 half-mask respirators are suitable for lacquer and enamel paints, pesticides, welding, dusts, and oil based particulate aerosols for up to eight hours.
Dentec Safety™ Comfort-Air™ Series 300 Diskit™ P100 Complete Respirators

Series 300 thermoplastic half-mask respirators with Diskit™ P100 filter assembly are ideal for welding, dust and oil mist applications.
Dentec Safety™ Comfort-Air™ Series 100 Half-Mask Respirators

Pure silicone half-mask respirators are comfortable and easy to clean.
Dentec Safety™ Series 300 Half-Mask Respirators with N95 Assembly

Thermoplastic half-mask respirators complete with N95 assembly are suitable for welding, dusts and non-oil mists.
Online savings are available
Dentec Safety™ Comfort-Air™ Series 400 Elastomeric Facepiece Respirator with OV/R95 Filter Assembly

Organic Vapor/R95 elastomeric respirators are worn when working with lacquer and enamel paints, pesticides, welding, dusts, and oil based particulate aerosols for up to 8 hours.
Online savings are available
Dentec Safety™ Comfort-Air™ Series 100 Half-Face Respirators with R95 Filter Assembly

Silicone half-mask respirators with R95 filter assembly are suitable for welding, dusts and oil-based particulate aerosols.
Dentec Safety™ Comfort-Air™ Series 100 Half-Mask Respirators with OV/R95 Filter Assembly

Silicone organic vapor/R95 half-mask respirators are suitable for lacquer and enamel paints, pesticides, welding, dusts, and oil based particulate aerosols for up to eight hours.
Dentec Safety™ Comfort-Air™ Series 300 Thermoplastic Facepiece Respirator with OV/R95 Filter Assembly

Organic Vapor/R95 thermoplastic respirators are worn when working with lacquer and enamel paints, pesticides, welding, dusts, and oil based particulate aerosols for up to 8 hours.