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Positive Pressure Firefighting Oxygen Respirator: it provides 4 hours of respiratory protection with lightweight overall design.

​​High safety, excellent protection, comfortable wear, simple operation, low maintenance, lightweight, compact structure, and low operating and maintenance costs. Its innovative design provides 4 hours of respiratory protection in toxic environments.
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  • RHZYN240

  1. Non-toxic eco-friendly coolant significantly reduces inhalation temperature and improves breathing comfort.

  2. Integrated pressure reducer ensures stable air supply and is equipped with a safety valve for operational safety.

  3. The mask body is made of non-toxic, anti-aging silicone rubber, with an anti-fog inner lens and scratch-resistant outer lens.

  4. An adjustable annular orifice ensures stable oxygen supply without clogging, significantly improving product performance.

  5. Tapered double-pressure sealing technology is used for medium and high pressures, ensuring air tightness during transport and impact.

  6. The harness uses anti-static, flame-retardant, and reflective materials that are soft and wear-resistant. Unique straps evenly distribute weight across the shoulders, back, and hips.

  7. An ideal flow-limiting device ensures the shoulder-mounted gauge rises steadily and returns to zero quickly.

  1. Rated protection time: ≥ 4h

  2. Cylinder water volume: 2.7L

  3. Cylinder rated working pressure: 20MPa

  4. Fixed oxygen supply: (1.6 ± 0.2) L/min

  5. Dimensions: 580 × 395 × 170 mm

  6. Exhaust valve opening pressure: 400–700 Pa

  7. Automatic refill valve opening pressure: 50–200 Pa

  8. CO₂ absorbent mass: 1.8 kg

  9. Automatic/manual oxygen supply flow: >80 L/min

  10. Total equipment mass: <14.8 kg

This product is widely used in firefighting, chemical, maritime, petroleum, metallurgy, warehousing, laboratories, mining, and other sectors. It enables firefighters and rescue personnel to safely and effectively extinguish fires, conduct disaster relief, and perform rescue operations in environments such as thick smoke, toxic gases, steam, or oxygen-deficient atmospheres.

Frequent Questions
  • 1. Is the device comfortable to wear for long periods?​​
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    Yes, it emphasizes wearing comfort, lightweight design, and compact structure, reducing user fatigue during prolonged use while ensuring ease of movement.
  • 2. How user-friendly is the device in terms of operation and maintenance?​​
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    The device is designed for simple operation and requires minimal maintenance, which helps lower overall usage and maintenance costs while improving efficiency.
  • 3. What makes this respiratory protection device innovative?​​
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    Its innovation lies in combining extended protection (4 hours), high safety, lightweight comfort, and low operating costs—all in a compact and easy-to-use system tailored for toxic environments.
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