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.
Dentec Safety™ Comfort-Air™ 400NxMD Half-Mask Elastomeric Respirator with N95 Filters
Comfort-Air™NxMD white half-mask respirators provide protection against non-oil based particulate aerosols and COVID viruses.
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™ 400NxMD Half-Mask Elastomeric Respirator
Comfort-Air™ 400NxMD 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.
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™ 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.
MSA™ Advantage™ 420 Half-Mask Respirator
One-piece UniBond over-molded silicone facepiece helps eliminate possible leak paths
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.
Dentec Safety™ Comfort-Air™ Series 300 Half Mask Respirators
Thermoplastic half-mask respirators provide comfort and durability with a flexible sealing edge and multi-position cartridge attachment.
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™ 400Nx Half-Mask Elastomeric Respirator with N95 Filters
Comfort-Air™Nx black half-mask respirators provide protection against non-oil based particulate aerosols and COVID viruses.
Dentec Safety™ Comfort Air™ Series 400 Low Maintenance Respirators
Elastomeric half-mask respirators features a flexible sealing edge and multi-position cartridge attachment.
Dentec Safety™ Comfort-Air™ Series 100 Half-Mask Respirators
Pure silicone half-mask respirators are comfortable and easy to clean.
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.
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™ 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.