Meltblown Cloth Particle Filtration Efficiency Test Equipment : Accurate Aerosol Filtration Performance Evaluatio

Meltblown nonwoven fabric is the core filter material widely used in masks, air purification filters, industrial dust removal and other fields. The particle filtration efficiency directly determines the protective and filtering performance of the final product. But how can manufacturers and QC labs reliably verify whether meltblown material can intercept aerosol particles stably under standardized test conditions? A commonly adopted solution is the aerosol filtration efficiency test with professional test equipment. In this article, we will introduce the basic principles of meltblown cloth particle filtration efficiency testing, key technical indicators, and explore how model SN12601 aerosol filtration test system supports filter media quality assessment.

This test evaluates the ability of meltblown filter media to block aerosol particles in a controlled laboratory environment. The equipment generates stable aerosol particles by cold generation method, and detects the particle concentration upstream and downstream of the sample. By comparing the concentration difference, the filtration efficiency of the sample can be calculated accurately. During testing, the system monitors real-time parameters including flow rate, temperature and humidity to guarantee repeatable test results. Operators can complete sample clamping, start automated testing, record test data, and export records with optional PC connection. It is a necessary quality control instrument for meltblown cloth production and filter material laboratories.

The SN12601 supports two main aerosol types for different test requirements.

• Saline aerosol: Sodium chloride particles, count median diameter of (0.075 ± 0.02) μm, geometric standard deviation ≤1.86. It is widely used for mask filter material testing.
• Oil-based aerosol: Optional DOP, DEHS, paraffin oil or corn oil particles, count median diameter of (0.185 ± 0.02) μm, geometric standard deviation ≤1.60. It fits the test requirements of high-efficiency filter materials. The aerosol concentration for both saline and oil aerosol is controlled ≤30 mg/m³, to keep the test environment stable and avoid excessive particle load affecting test accuracy.

The performance of the test system depends on precise flow control and high-precision concentration measurement.

1. Flow range: (0–100) L/min with accuracy 1%, suitable for different test flow requirements of various filter materials.
2. Test area: Standard 100 cm², 28 cm² is optional, to adapt different sample sizes.
3. Dynamic measurement range: 0.001–100 mg/m³, accuracy 1%, which can cover low and high particle concentration test scenarios.
4. Power supply: AC220V 50Hz, rated power 1.2 kW, convenient for common laboratory power environment.
5. Product dimensions: 800 mm × 560 mm × 1080 mm (L × W × H), compact structure, easy to place in the laboratory. The system is equipped with an integrated silent vacuum pump for suction and exhaust, to provide stable airflow during the whole test cycle.

A complete set of SN12601 filtration efficiency test equipment contains all modules needed for out-of-box testing:

• Main unit: The host with touchscreen operation interface, the control core of the whole system.
• Test fixture set: For fast clamping of meltblown cloth and mask samples.
• Aerosol generator set: Adopts cold generation method to produce stable saline or oil aerosol.
• Photometer: Used to detect aerosol particle concentration.
• Digital gas flow meter: Real-time monitoring and feedback of test airflow.
• Integrated silent vacuum pump (suction & exhaust): Provides stable power for airflow circulation.

This test system is widely used for reliable filtration efficiency testing in laboratories and industrial quality control applications. Typical application scenarios include:

• Mask manufacturing: Filtration efficiency inspection of medical masks, particulate respirators.
• Filter material factory: R&D and batch quality inspection of meltblown nonwoven fabric.
• Air purification industry: Testing of HEPA and medium-efficiency filter elements.
• Third-party testing laboratories: Standard compliance test and performance certification for filter media. The test standard and aerosol type can be selected according to the target product specification.

Q1: What is the difference between saline aerosol and oil-based aerosol test? They differ in particle size distribution and application standards. Sodium chloride aerosol has smaller median particle size and is commonly used for mask testing; oil aerosols such as DOP/DEHS have larger particle size and are usually for high-efficiency filter testing.

Q2: Can I test different sample sizes on this machine? Yes. The standard test area is 100 cm², and 28 cm² test area is optional, you can choose the fixture according to your sample.

Q3: Does this machine support computer data export? Yes, it supports optional PC software connectivity, you can record and manage test data on a computer.

Q4: Is the vacuum pump separate? No. It comes with an integrated silent vacuum pump for suction and exhaust, no extra vacuum pump purchase is required.

Meltblown cloth particle filtration efficiency testing is a critical quality check link for filter media. Stable aerosol generation, precise flow control and real-time concentration monitoring are the foundation of credible test reports. Sinuo SN12601 meltblown cloth particle filtration efficiency test equipment integrates all required test modules, supporting saline and oil aerosol testing to meet the routine QC and material research demands of filter manufacturers and testing labs. Contact our team to discuss your testing standards, aerosol selection, sample requirements and laboratory layout.