I. Requirements Analysis

In high-risk environments such as industrial production, firefighting and rescue operations, chemical spill response, and mining, workers frequently face life-threatening challenges including toxic gases, dust, oxygen deficiency, or harmful particulates. To safeguard workers' respiratory safety and health, a highly efficient and reliable powered air-purifying respirator is essential. This product—the Electric Powered Air-Purifying Respirator with Long Hose—is a high-performance emergency rescue device specifically designed to address these needs. It provides workers with a continuous supply of clean air, ensuring safe operations in harsh environments.

II. Product Features

1. High-Efficiency Filtration: Utilizes a high-precision filtration system with a filtration accuracy of 0.3 microns and an efficiency rate of up to 99.97%, effectively isolating harmful substances such as toxic gases, particles, and dust.

2. Long-lasting Power Supply: Dual AC/DC design supports both rechargeable DC polymer lithium-ion batteries for up to 6 hours of continuous operation and AC power via an adapter for unlimited runtime, meeting diverse operational needs.

3. Lightweight and Comfortable: The headgear design is lightweight, weighing only 100g, and offers a loose, comfortable fit. The polycarbonate visor is impact-resistant and anti-fog, providing a clear field of vision to ensure safe and efficient operation.

4. Flexible Configuration: Filters can be swapped based on operational environment requirements, with multiple hood and mask options available. Includes adjustable hose lengths (10m, 15m, 20m, extendable up to 40m for tight-fitting full-face masks) to adapt to diverse complex environments.

5. Durable and Reliable: The motor features a 12V DC brushless design with a maximum speed of 3500 RPM and a service life of up to 50,000 hours, ensuring long-term stable operation of the equipment.

III. Application Scenarios

1. Industrial environments: Such as chemical production, electroplating workshops, paint spraying, etc., where protection against toxic and harmful gases and particulates is required.

2. Fire Rescue: Entering fire scenes and smoke-filled areas to provide clear breathing space.

3. Chemical Spills: Handle chemical spill incidents and protect rescue personnel from toxic gas exposure.

4. Mining Operations: Working in oxygen-deficient or hazardous gas environments such as mine shafts and tunnels.

5. Special Operations Zones: High-risk areas such as nuclear facility maintenance sites and biological laboratories.

IV. Product Specifications

Serial Number	Project Name	Technical Specifications
Electric Respirator Unit
1	Motor Type	12V DC Brushless Motor
2	Maximum rotational speed	3500 rpm
3	Motor lifespan	50,000 hours
4	Power Supply Type	AC/DC dual-use
5	DC power supply	Rechargeable polymer lithium-ion battery, continuous operation for 6 hours
6	AC power supply	Converts 100V–240V AC to 12V DC, with unlimited operating time.
7	Filter precision	0.3 micrometers
8	Filtration efficiency	99.97%
9	Host weight	1.5 kg
Long breathing tube
1	Material	Polyurethane (PU) Corrugated Hose
2	Characteristics	Non-toxic and odorless, environmentally friendly; low wind resistance, minimal airflow loss.
3	Airflow	Airflow at 10-meter outlet: ≥200 liters per minute; Airflow at 20 meters: ≥160 liters per minute
Airflow Hood
1	Weight	100g
2	Material	Polycarbonate face shield, lightweight material
3	Features	Impact-resistant, anti-fog, wide field of view, comfortable fit, adjustable headband, washable (avoid scratching the lenses)
4	Type	Open-face hoods are not suitable for oxygen-deficient environments (<18% oxygen content) or IDLH environments; a tight-fitting full-face respirator must be selected.
5	Long Pipe Selection	10 meters, 15 meters, 20 meters (tight-fitting full-face masks can reach up to 40 meters)