Mine Refuge Systems — Built for the Worst. Ready When It Matters.
ON2 MineSafe provides mine refuge chambers and RF1 CO₂ scrubbing systems. Mine safety excellence since 1994.
The TommyKnocker — TK1 and TK2
Portable mine refuge chambers in two sizes, with autonomous protection up to 96 hours. 250+ TommyKnockers operational. Explore the chamber interiors, battery and climate-control equipment, transport arrangements and configuration options.
Explore portable refuge systemsSegmented refuge systems
Segmented chambers provide modular underground refuge configurations for different mine access and crew requirements.
Explore segmented chambersPermanent mine refuge
Permanent refuge systems support engineered safe-haven layouts and mine-specific planning.
Explore permanent refugeRefuge One Air Centres — RF1 CO₂ removal
400+ Refuge One Air Centres. RF1 systems remove carbon dioxide from refuge environments.
MineSafe experience
400+ compliant systems protecting crews across Canada, the U.S., and Latin America. 25+ countries worldwide.
Plan a refuge system
Discuss crew size, mine access, refuge layout and operating requirements with a Mine Safety Specialist.
View MineSafe systems and contact the team