Overview​​
The BRT-4000 is a state-of-the-art testing system designed to evaluate the breathing resistance and pressure drop characteristics of masks, respirators, and filtration media under simulated respiratory conditions. Critical for ensuring wearer comfort and compliance with global safety standards, this instrument is indispensable for medical device manufacturers, PPE producers, and research institutions focused on optimizing airflow efficiency and product performance.

​​Core Features​​

1. ​​Dual-Flow Testing​​: Supports adjustable flow rates (10–100 L/min) to mimic human breathing patterns (e.g., rest, exercise).
2. ​​Precision Pressure Sensors​​: Measures differential pressure (ΔP) with ±0.5 Pa accuracy to quantify resistance across masks/filters.
3. ​​Dynamic Resistance Mapping​​: Real-time monitoring of pressure-flow curves to identify optimal filtration media balance between protection and breathability.
4. ​​Multi-Material Compatibility​​: Compatible with N95 respirators, surgical masks, KN95 filters, gas masks, and industrial respirators.
5. ​​Automated Compliance Testing​​: Pre-programmed protocols for ASTM F2100, EN 14683, ISO 29903, and other global standards.

​​Technological Innovations​​

• ​​Adaptive Flow Stabilization​​: Maintains consistent airflow even with irregular sample shapes or humidity fluctuations (up to 85% RH).
• ​​AI-Powered Data Correction​​: Machine learning algorithms compensate for sample warping or edge leaks during testing.
• ​​Energy-Efficient Design​​: Low-power consumption with a sleep mode to reduce operational costs by 35%.

​​Applications​​

• ​​Medical PPE​​: Validate breathing resistance of surgical masks and respirators per ASTM F2100/EN 14683.
• ​​Industrial Safety​​: Test respirators for oil/gas, mining, and chemical industries to ensure compliance with OSHA/NFPA standards.
• ​​Consumer Products​​: Evaluate dust/mold masks and HVAC filters for everyday comfort and efficacy.
• ​​Academic Research​​: Study novel filtration materials (e.g., nanofibers, graphene) for pressure drop optimization.

​​Compliance & Certification​​
Certified to ASTM F2296 (Breathing Resistance Testing), ISO 16890 (Air Filter Performance), and EN 1822 (High-Efficiency Filters).

​​Optional Accessories​​

• High-speed data acquisition module (1 kHz sampling rate)
• Environmental chamber (-20–150°C, 0–95% RH)
• Multi-sample holder for parallel testing of 10+ masks
• Customizable software with AI-driven trend analysis

​​Conclusion​​
The BRT-4000 bridges the gap between rigorous safety standards and user comfort by delivering precise, repeatable measurements of breathing resistance. Whether you’re developing next-generation respirators or ensuring compliance for mass-produced PPE, this instrument provides actionable insights to enhance product performance and marketability.