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Self Contained Positive Pressure Oxygen Breathing Apparatus is a safety protection product designed by fully integration of advanced technology characteristics of similar products at home and abroad and the combination of current status of coal mine and fire industry.The advantages in the structure design are the reliable performance, small volume, light weight, comfortable to wear and the convenient maintenance and so on.It povides secure respiratory protection for emergency rescue and relief when the toxic and harmful gases appear or when people are in the hypoxic condition.
Structural Characteristics
1. It adopts the spheroidal large vision mask design with permanent anti fog and anti scratching wearproof ability, it could keep the visual effect of the mask
2. It adopts the advanced exhaust structure design to save gas source and to ensure that the useful time is longer than the rated time
3. It adopts the big airbag with high quality materials to reduce the deformation resistance of the airbag,makeing breath more easily and smoothly
4. It adopts the large cross-section breathing hose, makeing the environment of breathing more comfortable
5. It adopts the special structure of quantitative valve to ensure a more stable supply of oxygen
6. It adopts the unique improved design with cooler cover,you can replace the ice easily without opening the upper cover of the respirator
Technical Parameters
| Rated protection time | 4h |
| Oxygen bottle volume | 2.4L |
| Rated working pressure of oxygen bottle | 20MPa |
| Alarm pressure | 5¡À0.5MPa |
| Oxygen storage capacity | 480L |
| The amount of filling calcium hydroxide | ¡Ý2.1kg |
| Expiratory resistance | ¡Ü600Pa |
| Inspiratory resistance | ¡Ü600Pa |
| Quantitative supply of oxygen | ¡Ý1.4L/min |
| Automatic oxygen supply | ¡Ý80L/min |
| Manual oxygen supply | ¡Ý80L/min |
| Opening pressure of automatic supply valve | 10~245Pa |
| Opening pressure of the exhaust valve | 400~700Pa |
| The concentration of carbon dioxide in the air | ¡Ü1% |
| The concentration of oxygen inhalation | ¡Ü21% |
| Alarm sound level | ¡Ý70dB |
| Alarm time | 30~60s |
| Size and shape | 580¡Á385¡Á165 mm |
| Net weight (without calcium oxide and oxygen) | 10kg |



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