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Positive Pressure Firefighting Air Respirator​: Self-contained open-circuit, for firefighting, disaster relief, and rescue operations

The RHZK6.8CT/RHZK9CT is a self-contained open-circuit positive pressure air respirator designed for firefighting and rescue operations. It consists of a air cylinder, pressure reducer, supply valve, carrying harness, communication mask, and an intelligent system. It is equipped with a rapid inflation device and features quick-connect functionality for the air cylinder. This respirator is widely used in firefighting, chemical, maritime, petroleum, metallurgy, warehousing, laboratory, and mining industries. It enables firefighters and rescue personnel to safely and effectively extinguish fires, conduct disaster relief, and perform rescue operations in environments filled with dense smoke, toxic gases, steam, or oxygen deficiency.
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  • RHZK

  1. High-Performance Flame-Retardant Harness: Made of Kevlar material with after-flame time < 5 seconds.

  2. Integrated Composite Backplate: Ergonomically designed, flame-retardant, and high-strength.

  3. Intelligent Digital Display Alarm: Integrate functions such as pressure, time, temperature, and distress alarm.

  4. Metal Bayonet: High strength and non-flammable.

  5. Silicone Mask: Double-folded edges, wide field of vision, and excellent air tightness.

  6. Wireless Heads-Up Display (HUD) Unit: Monitor respirator status in real time during operation.

  7. New Positive Pressure Supply Valve: Minimal fluctuation in breathing resistance.

  8. Long-Distance Communication Device: Enable real-time remote communication.

  9. Rapid Inflation Interface: Provide emergency air refill capability.

  10. Quick-Connect Cylinder Device: Allow for fast cylinder installation.

  1. Cylinder volume (water capacity): 6.8L / 9.0L

  2. Cylinder rated working pressure: 30MPa

  3. Flame-retardant performance: After-flame time ≤ 5s

  4. Dynamic exhalation resistance: < 1000Pa

  5. Static pressure: < 500Pa

  6. Total weight: 11.9kg / 13.8kg

  7. Explosion-proof rating of electrical components: Exia II CT3

  8. Overall air tightness: Pressure drop ≤ 2MPa within 1 minute

  9. Dynamic inhalation pressure: < 500Pa

  10. Alarm type: Dual electronic/mechanical alarm

This respirator is extensively applied in firefighting, chemical, maritime, petroleum, metallurgical, warehousing, laboratory, and mining sectors. It provides firefighters and emergency rescue personnel with a reliable means to safely and efficiently execute fire suppression, disaster response, and rescue tasks in hazardous conditions such as thick smoke, toxic gases, steam, or oxygen-deficient atmospheres.

Frequent Questions
  • 1. In which industries or scenarios is this respirator commonly used?
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    It is widely used in firefighting, chemical processing, shipbuilding, petroleum, metallurgy, warehousing, laboratories, and mining—especially in toxic smoke, gas, steam, or oxygen-deficient atmospheres for灭火, disaster response, and rescue operations.
  • 2. How does the positive pressure design enhance safety?
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    The positive pressure system maintains a higher pressure inside the mask than the ambient environment, preventing contaminated air from leaking in and ensuring the user always breathes clean, safe air.
  • 3. Does the respirator support communication and smart functionality?
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    Yes, it is equipped with a communication mask for clear dialogue in noisy environments and an intelligent system for real-time monitoring of air supply and operational status.
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