Junray ZR-1006 Aerosol Filtration Efficiency and Airflow Resistance Tester

Overview

The Junray ZR-1006 Aerosol Filtration Efficiency and Airflow Resistance Tester is a fully integrated, benchtop instrumentation platform engineered for standardized evaluation of particulate filtration performance and pressure drop characteristics of respiratory protective devices—including surgical masks, N95/N99 respirators, medical gowns, filter media, and industrial facepiece filters. It operates on the principle of real-time photometric detection of upstream and downstream aerosol concentrations, enabling quantitative determination of filtration efficiency (%) via light-scattering intensity correlation. Simultaneously, it measures differential pressure across the test specimen under controlled volumetric airflow conditions (typically 30–85 L/min, per ISO 16900-1 and ASTM F2299), delivering compliant airflow resistance data in Pa or mm H₂O. The system is designed to support regulatory testing workflows aligned with international respiratory protection standards, including ISO 16900 series, EN 149:2001+A1:2009, GB 2626–2019 (replacing GB 2626–2006), GB/T 32610–2016, GB 19083–2010, YY 0469–2011, and TAJ 1001–2015.

Key Features

• Integrated photometric detection architecture with long-life, temperature-stabilized light-scattering module—designed for high reproducibility and minimal drift over extended operational cycles.
• Automated aerosol challenge control: synchronized triggering and modulation of upstream aerosol generation (when paired with ZR-1311 sodium chloride aerosol generator or optional oil-based generator) ensures precise delivery of monodisperse or polydisperse challenge particles (e.g., 0.075 µm ± 0.02 µm count median diameter for NaCl).
• High-accuracy mass flow control: built-in precision electronic mass flow meter (±1% full scale) and brushless DC sampling pump maintain stable, programmable test flow rates—critical for repeatable ΔP and efficiency calculations.
• Intelligent fixture system: modular, pneumatically actuated clamping mechanism with multiple interchangeable mask- and filter-media-specific holders (flat-sheet, cup-shaped, duckbill, and contoured respirator fixtures) ensures uniform sealing and minimized edge leakage.
• Onboard electrostatic neutralization: integrated radioactive (²¹⁰Po) or corona-based neutralizer eliminates particle charge effects that may bias filtration measurements—particularly essential for electret-filtered media.
• Safety-first design: infrared proximity sensors prevent clamp closure during hand intrusion; leak-tight aerosol chamber construction meets ISO 16900-3 containment requirements; automatic purge cycles minimize operator exposure.

Sample Compatibility & Compliance

The ZR-1006 accommodates flat filter media (up to 100 mm diameter), molded respirators (N95, KN95, FFP2), surgical masks (ASTM Level 1–3), and layered composite barrier materials. All mechanical and software workflows comply with GLP-aligned documentation practices. Data acquisition supports audit-ready timestamping, user authentication logs, and configurable pass/fail criteria per standard-defined thresholds. System validation documentation includes as-delivered flow calibration certificates traceable to NIM (National Institute of Metrology, China) and optional IQ/OQ protocols compatible with ISO/IEC 17025-accredited laboratories.

Software & Data Management

The embedded Linux-based operating system features a 10.1-inch capacitive touchscreen interface with intuitive icon-driven navigation. Test methods are preloaded per referenced standards (e.g., “GB 2626 Salt Aerosol Mode”, “YY 0469 Bacterial Filtration Efficiency Protocol”). Real-time graphs display upstream/downstream particle concentration, differential pressure, and calculated efficiency curves. Raw data (CSV format) is exportable via USB 2.0 port; optional Bluetooth 5.0 interface enables direct thermal printing to certified lab printers. Audit trail functionality records all parameter changes, start/stop events, and user logins—supporting FDA 21 CFR Part 11 readiness when deployed with external identity management integration.

Applications

• Regulatory conformance testing for CE-marked respirators and FDA-cleared surgical masks.
• R&D screening of novel filter media (melt-blown PP, nanofiber composites, electrospun membranes).
• Quality assurance in high-volume mask manufacturing lines—batch release verification against AQL sampling plans.
• Comparative assessment of aging, humidity conditioning, or mechanical stress impacts on filtration integrity.
• Validation of decontamination protocols (e.g., UV-C, vaporized hydrogen peroxide) on reusable respirators.
• Academic and public health research on airborne pathogen interception efficacy (e.g., surrogate viruses, bacterial spores).

FAQ

Does the ZR-1006 meet ISO 16900-1 and ISO 16900-3 requirements for respirator testing?
Yes—the system’s flow control accuracy, photometric sensitivity (detection limit < 0.001 mg/m³), chamber containment integrity, and procedural automation align with the metrological and safety provisions of both parts.
Can it be used with oil-based aerosols such as DEHS or paraffin oil?
Yes—optional DEHS or PAO aerosol generator modules (e.g., ZR-1312) are available and fully interoperable with the ZR-1006 control architecture.
Is firmware upgradable in the field?
Yes—updates are delivered via USB stick and include new test templates, enhanced reporting formats, and expanded compliance language packs.
What maintenance intervals are recommended for optical components?
The integrated light-scattering module includes cumulative runtime tracking; cleaning alerts trigger at 200 hours of active photometric operation, with detailed SOPs provided in the service manual.
Is third-party calibration certification available?
Junray offers annual calibration services with NIST-traceable flow and photometer standards, documented in ISO/IEC 17025-compliant calibration reports.