Loobo LB-YWF-01 Ultrasonic Pure-Water Smoke Generator

Overview

The Loobo LB-YWF-01 Ultrasonic Pure-Water Smoke Generator is a precision-engineered tool designed for non-intrusive, particle-free airflow visualization in controlled environments. Unlike glycol- or oil-based smoke generators, this device employs high-frequency ultrasonic transduction to atomize deionized or distilled water into a stable, sub-10 µm aerosol mist—free of hydrocarbons, residues, or volatile organic compounds (VOCs). The resulting monodisperse droplet cloud (median diameter ~3–7 µm) exhibits excellent suspension time and optical contrast under standard white-light or laser sheet illumination, enabling quantitative assessment of laminar flow patterns, turbulence boundaries, and air velocity gradients. It is specifically calibrated for use in ISO Class 1–10,000 cleanrooms (ISO 14644-1), pharmaceutical manufacturing suites, biosafety cabinets (BSCs), and HVAC commissioning protocols where contamination control and regulatory traceability are mandatory.

Key Features

• Continuous smoke generation for ≥60 minutes per fill cycle, supporting extended airflow mapping sessions without interruption
• Modular pneumatic interface compatible with standard 8 mm ID silicone or PTFE-coated corrugated tubing (included), enabling flexible delivery of linear, curtain-like, or point-source smoke streams
• Acoustic noise emission <45 dB(A) at 1 m distance—engineered for operation in quiet laboratory and GMP production environments
• SUS304 stainless steel enclosure with IP54-rated ingress protection, corrosion-resistant internal wetted surfaces, and seamless weld construction for cleanability and long-term reliability
• No consumables required beyond purified water (≥1 MΩ·cm resistivity recommended); eliminates risk of residue buildup, nozzle clogging, or calibration drift associated with heated or chemical-based systems

Sample Compatibility & Compliance

The LB-YWF-01 is validated for use with Type I or II purified water per ASTM D1193 and USP <1231>. Its output aerosol contains zero detectable hydrocarbons (per ASTM D2622), making it suitable for ISO 14644-3 Annex B testing, EU GMP Annex 1 (2022) airflow qualification, and FDA Process Validation Guidance (2011) for sterile product manufacturing. The device complies with IEC 61000-6-3 (EMC emissions) and IEC 61010-1 (safety for laboratory equipment). Full traceability documentation—including factory calibration certificate, material compliance declarations (RoHS/REACH), and electrical safety test reports—is provided with each unit to support GLP/GMP audit readiness.

Software & Data Management

While the LB-YWF-01 operates as a standalone analog instrument (no embedded microcontroller or firmware), its consistent output flow rate (1.0 ±0.05 L/min at 0.2 MPa backpressure) and stable droplet size distribution enable seamless integration with third-party digital imaging systems. When paired with validated particle image velocimetry (PIV) software (e.g., TSI INSIGHT, LaVision DaVis) or time-lapse video analysis tools (ImageJ/Fiji with Particle Tracker plugin), users can generate ISO-compliant airflow vector maps, residence time distributions, and recirculation zone quantifications. All operational parameters—including runtime, reservoir level, and ambient temperature—are manually logged per SOP; optional external data loggers (e.g., Omega OM-DAQPRO-5300) may be connected via 4–20 mA analog output (available on LB-YWF-01 Pro variant).

Applications

• Qualification of unidirectional airflow in ISO Class 5 laminar flow hoods and isolators
• Verification of room pressurization differentials and leakage pathways per ISO 14644-3 Clause 8.2
• Smoke tracing of fume hood face velocities, capture efficiency, and bypass air ingress
• Validation of emergency purge cycles in chemical process ventilation systems (per NFPA 45)
• Detection of ductwork breaches and filter seal integrity during pre-operational testing
• Educational demonstrations of Bernoulli effects, thermal plume behavior, and entrainment dynamics

FAQ

Is the LB-YWF-01 compliant with FDA 21 CFR Part 11 requirements?
No—the base model is an analog, non-networked device with no electronic records or user authentication. For Part 11–compliant deployments, pair it with a validated third-party data acquisition system that provides audit trail, electronic signatures, and record retention capabilities.
What water purity is required to prevent scaling or transducer fouling?
Deionized water with resistivity ≥1 MΩ·cm and total silica <0.1 ppm is strongly recommended. Distilled water may be used if conductivity remains below 1 µS/cm; tap or softened water must never be introduced.
Can the unit be operated horizontally or inverted?
No—operation must be strictly upright to ensure proper water level sensing, transducer submersion, and uniform mist ejection. Tilting >5° may cause intermittent output or premature shutdown.
Does the generator require annual recalibration?
Not for flow rate or droplet size, as these are physically determined by transducer frequency and orifice geometry. However, annual verification of output stability (using calibrated flow meter and cascade impactor) is advised per ISO/IEC 17025 internal quality procedures.