I. Product Overview:

The oxygen respirator is a piece of personal protective equipment specifically designed for high-risk environments. It provides users with a prolonged supply of high-concentration oxygen, ensuring safe breathing in harsh conditions. This product features extended protection duration, high oxygen concentration, and low carbon dioxide levels. It is widely used in high-risk fields such as firefighting, rescue operations, diving, and mining.

II. Product Features:

1. Extended Protection: The oxygen respirator provides at least 4 hours of protection, ensuring users receive a continuous supply of sufficient oxygen during prolonged operations.

2. High-concentration oxygen: The oxygen concentration in the inhaled air is greater than or equal to 21%, meeting the oxygen requirements for normal human respiration and ensuring users can breathe normally even in oxygen-deficient environments.

3. Low Carbon Dioxide Concentration: The carbon dioxide concentration in the inhaled air is maintained below 1%, effectively preventing suffocation risks caused by excessive carbon dioxide levels and ensuring user safety.

4. Comfortable Wear: The respirator features an ergonomic design for comfortable wear without causing undue burden to the user. Additionally, it is lightweight and portable, making it convenient for use in various settings.

III. Application Scenarios:

1. Firefighting and Rescue: At fire scenes, oxygen respirators provide firefighters with a steady supply of oxygen, ensuring they can breathe normally amid thick smoke and toxic gases to effectively carry out rescue operations.

2. Diving Operations: During diving, the oxygen content in the underwater environment is relatively low. Using an oxygen respirator ensures divers receive sufficient oxygen, preventing the occurrence of decompression sickness.

3. Mining Operations: In confined environments such as mines, where air circulation is poor and oxygen levels may be insufficient, the use of oxygen respirators ensures miners' respiratory safety and reduces accident risks.

IV. Product Specifications:

1. Effective protection duration: 4 hours (moderate work intensity)

2. Oxygen cylinder rated pressure: 20 MPa

3. Oxygen cylinder capacity: 2.4L

4. Oxygen capacity: 480L

5. Calcium oxide loading: 2.1K

6. Dimensions: 560 × 370 × 160 mm

7. Capacity: 10kg (excluding calcium hydroxide and oxygen)

8. Application: The HYZ-4 Isolated Positive-Pressure Oxygen Breathing Apparatus is primarily designed for use in coal mines, firefighting, chemical plants, tunnels, scientific research, and high-rise buildings. It is intended for rescue operations, disaster relief, search and detection tasks in hazardous environments characterized by toxic or harmful gases and oxygen deficiency.

V. Key Performance Features: