Description Features Uses 7-inch high-definition LCD touch screen for intuitive content and easier operation. Equipped with special salt aerosol generator to generate aerosol with specific particle size and concentration. Equipped with multiple series of special fixtures suitable for detection of various masks. Built-in long-life sensor module with cumulative sampling time. Automatically controls aerosol occurrence and calculates collection efficiency to reduce human intervention. Built-in high-precision electronic flowmeter and high-performance sampling pump for flow stability. Automatic pneumatic clamping function. Comes with a static elimination device. Conforms to the third-level authority of GMP users. Single and group statistical analysis of test results can be performed. ISP online control and upgrade functions allow remote test function changes as required. Optional oily aerosol generator. Special computer communication software for real-time test display, data analysis and processing, and data storage. Specifications Excess efficiency detection range: 0 to 99.999%. Accuracy: level 1. Flow rate range of over-efficiency detection: 0 to 100 L/min. Flowmeter accuracy: 1.5. Sampling frequency: 1 to 9999 times/min. Counting median diameter: salt particles (0.075 ± 0.02) microns, oil particles (0.185 ± 0.02) microns. Geometric standard deviation of particle size distribution: salt particles ≤1.86, oil particles ≤1.60. Host power: 220 V and 50/60 Hz. Net weight of main machine: 70 kg. Included Host. Professional software. Aerosol generator. Flow meter.