Scope of Application

【Operating Instructions】

This instrument employs polydisperse experimental aerosols (DEHS or NaCl) for quantitative dust generation. Under the influence of a clean airflow (negative pressure mode), it conducts routine performance tests by sampling aerosol particles upstream and downstream of the test filter material and measuring the pressure difference.

YS-706YY Particulate Filtration Efficiency Tester

【Product Overview】This instrument employs polydisperse experimental aerosols (DEHS or NaCl) for quantitative dust generation. Under the influence of a clean airflow (negative pressure mode), it conducts routine performance tests by sampling aerosol particles upstream and downstream of the test filter material and measuring the pressure difference.

【Compliance Standards】

1. YY0469-2011: "Medical surgical masks"

2. GB2626-2006: "Respiratory protection - Self-priming filter anti-particulate respirators"

3. European Standard EN1822-3:2009: "Testing of flat sheet filter media"

【Technical Specifications】

Applicable Filter Materials:

1. Glass fiber filter media

2. PP (Polypropylene) filter media

3. Membrane-coated filter media

Key Parameters:

• Particle Size Channels: 0.3, 0.5, 1.0, 2.0, 5.0, 10.0 μm (6 channels)

• Flow Rate Range: 20 ～ 100 l/min

• Resistance Detection Range: 0 ～ 1000 Pa

• Dust Source:

• Aerosol (DEHS)

• Sodium Salt (2% NaCl solution)

• Standard Test Area: 100 cm²

• Power Supply: 220V / 50 Hz

• System Power Consumption: < 1500W

• Overall Dimensions: 1000 mm (W) × 680 mm (D) × 1520 mm (H)

【Working Principle】The YS-706YY Particulate Filtration Efficiency Tester utilizes polydisperse experimental aerosols (DEHS or NaCl) to generate a controlled dust concentration. Driven by a clean airflow system (operating in negative pressure mode), the instrument samples aerosol particles from both the upstream and downstream sides of the test filter material. Simultaneously, it measures the pressure difference across the material to evaluate its filtration efficiency and resistance performance.