M21 Tactical CBRN Respirator with DIRIN 230 Filter
The M21 is a next-generation tactical CBRN respirator developed to meet the operational demands of modern military, law enforcement, and specialist response units operating in chemically, biologically, radiologically, and nuclear-threat environments.
Introduced in 2023 and developed in collaboration with Italian military CBRN specialists, the M21 has been approved by the Italian Ministry of Defence and meets the relevant criteria of NATO AEP-73, delivering advanced protection without compromising mobility or situational awareness.
Designed for Tactical CBRN Operations
From the outset, the M21 was engineered for the next-generation end user. As a result, its compact profile integrates seamlessly with modern helmets, CBRN protective suits, and weapon systems. Furthermore, the side-mounted filter connection can be configured on either the left or right, ensuring the respirator does not obstruct the field of view during tactical movement or weapon handling.
Advanced Protection and Performance
The M21 tactical CBRN respirator delivers high protection factors while reducing operator fatigue during prolonged wear.
Key protection features include
Advanced CBRN protection in accordance with STANAG 2352
Certified to EN 136-1998 Class 3
Tested for operational use from –40°C to +70°C
DPI auto-shut-off valve preventing air ingress during filter changes
Available in three sizes – S, M, L to support full facial demographic coverage
Consequently, the M21 provides reliable respiratory protection in extreme environments without sacrificing comfort or endurance.
Superior Comfort and Situational Awareness
In addition, the M21 incorporates an advanced airflow system that significantly lowers breathing resistance and reduces visor misting. At the same time, the inner mask minimises CO₂ re-breathing, helping to reduce fatigue during extended operations.
The panoramic visor provides:
Optical Class 1 clarity
Distortion-free wide field of vision
Ballistic and impact resistance
Scratch and chemical-agent resistant coatings
This combination ensures operators retain situational awareness, visual acuity, and confidence throughout high-risk deployments.
Modular Accessories and Configuration Options
Finally, the M21 tactical CBRN respirator supports a comprehensive range of accessories, allowing agencies to tailor the system to mission requirements.
Available options include
Clear, mirrored, sunlight, blue-blocker, breach, and laser visor outserts
Hydration system compatible with CamelBak
Integrated microphone and headset connection cables
3D textile or EPDM rubber harness options
Tactical carry bags and vision correction systems
This modular approach ensures the M21 functions as a scalable tactical respirator, not just a standalone gas mask.
DIRIN 230 NBC A2B2E2K2HgP3 R Filter
When paired with the DIRIN 230 NBC filter, the M21 becomes a fully integrated tactical CBRN respirator system capable of addressing a wide range of threats.
Specifically, the DIRIN 230 filter provides protection against:
Chemical Warfare Agents including Sarin
Blood agents such as Hydrogen Cyanide
Choking agents including Chloropicrin
Toxic industrial chemicals (organic, inorganic, acid, ammonia)
Riot control agents (CS / CN / OC)
Mercury vapours
Biological agents including bacteria, viruses, and fungal spores
Radioactive dusts and particulates
The filter exceeds EN 14387:2021 requirements and integrates seamlessly with DPI DSPS full-face masks using a 40 mm EN 148-1 NATO-standard threaded connection.
Filter Performance and Endurance
Moreover, the DIRIN 230 NBC filter delivers exceptional breakthrough performance, including:
Extended protection against Sarin and other CWAs;
100 hours of mercury vapour protection;
Low breathing resistance across all tested flow rates; and
P3-level particulate filtration for dusts, mists, and fumes.
Vacuum-sealed variants provide a shelf life of up to 10 years, supporting long-term storage and readiness planning.
Supported in Australia by Tactical Solutions
Tactical Solutions provides Australian support for the M21 and C21 tactical CBRN respirator and DIRIN 230 filter, offering local expertise across defence, law enforcement, emergency services, and specialist response units.
Support includes:
Respirator and filter configuration advice;
Integration with helmets, communications, and PPE;
Training and familiarisation support; and
Accessories and lifecycle sustainment.
Through this partnership, agencies can deploy the M21 as a fully integrated operational CBRN capability.