Yoyilab MJ-100F-I Mold Incubator, 100 L Forced-Air Microbial Incubator with UV Sterilization and Eco-Friendly Refrigerant

Overview

The Yoyilab MJ-100F-I Mold Incubator is a purpose-engineered forced-air incubation system optimized for controlled cultivation of fungi, bacteria, yeasts, and other aerobic microorganisms under stable thermal conditions. It operates on the principle of uniform convective heat transfer via an internal axial fan and precisely regulated heating elements—enabling reproducible growth kinetics essential for microbiological assays, environmental monitoring (e.g., BOD₅ analysis), pharmaceutical stability testing, and mycological research. Unlike natural convection units, its forced-air architecture ensures rapid temperature equilibration and minimal spatial gradients across the entire 100 L working volume. The chamber maintains ISO 14644-1 Class 8 (100,000) cleanroom-compatible air quality through continuous recirculation and integrated 254 nm ultraviolet irradiation, targeting airborne microbial load reduction without chemical residuals. Its non-CFC refrigerant system complies with Montreal Protocol requirements and supports energy-efficient operation in long-duration studies.

Key Features

• Robust dual-door construction with insulated double-glazed viewing window—minimizes thermal leakage during observation and preserves setpoint integrity
• Electropolished stainless-steel interior (304 grade) with radius-corner geometry for seamless cleaning and reduced biofilm adhesion risk
• Adjustable stainless-steel shelving (3 standard trays included), supporting flexible load configuration and airflow optimization
• Microprocessor-based PID temperature controller with 0.1 °C resolution, real-time display on 5.7-inch LCD interface, and programmable timer (1–9999 minutes)
• Auto-recovery function retains user-defined parameters after power interruption or system reset
• Dual-stage overtemperature protection: primary control loop + independent mechanical safety cutoff (adjustable threshold)
• Top-mounted UV-C germicidal lamp (254 nm) activated automatically during idle cycles to suppress airborne contaminants
• Four-position leveling feet with locking casters—ensures stable placement on uneven lab floors while enabling safe relocation

Sample Compatibility & Compliance

The MJ-100F-I accommodates standard Petri dishes (up to 150 mm), multi-well plates, culture tubes (15–50 mL), slant tubes, and Erlenmeyer flasks (up to 1 L). Its 0–65 °C operating range covers mesophilic (20–45 °C), thermophilic (45–65 °C), and psychrotolerant (0–10 °C) growth protocols. Temperature uniformity (±1.5 °C at 25 °C) meets ASTM E145-22 Annex A3 criteria for laboratory incubators used in microbiological enumeration. While not certified to IEC 61010-1 or ISO/IEC 17025 out-of-the-box, the unit is engineered for integration into GLP- and GMP-aligned environments—particularly where audit trails, calibration traceability, and deviation documentation are required. Optional RS485 communication port enables connection to centralized lab management systems for remote parameter logging and alarm notification.

Software & Data Management

The MJ-100F-I features embedded firmware supporting local data retention for up to 30 days of operational history—including setpoint logs, actual temperature readings (recorded every 60 seconds), alarm events, and UV cycle timestamps. Though no proprietary PC software is bundled, the optional RS485 interface (available as add-on) allows integration with third-party SCADA platforms or custom Python/LabVIEW applications using Modbus RTU protocol. All temperature records comply with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) when exported manually via USB or captured in real time via serial interface. For FDA 21 CFR Part 11 compliance, users may deploy external electronic lab notebooks (ELNs) with digital signature capability to archive validation reports and routine performance checks.

Applications

• Environmental microbiology: Enumeration of molds and yeasts in water, soil, and air samples per ISO 6222 and APHA Standard Methods 9215
• Pharmaceutical QC: Fungal challenge testing of sterile products and raw materials per USP and EP 2.6.12
• Food safety laboratories: Incubation for total viable count (TVC), coliforms, and Aspergillus/Penicillium isolation per ISO 4833-1 and AOAC 977.27
• Biochemical oxygen demand (BOD) measurement at 20 °C for wastewater analysis (Standard Methods 5210B)
• Antifungal susceptibility testing (AFST) using broth microdilution or agar dilution methods
• Stability assessment of biologics and vaccines under accelerated storage conditions

FAQ

What is the maximum ambient temperature for reliable operation?
The unit is rated for continuous use in ambient environments ≤30 °C and relative humidity ≤80% RH (non-condensing). Operation above these limits may impair cooling efficiency and extend temperature stabilization time.
Is the UV lamp replaceable, and what is its service life?
Yes—the UV-C lamp is a field-replaceable component with a nominal lifetime of 5,000 hours. Replacement requires only basic tools and adherence to manufacturer-specified safety interlocks.
Can this incubator be validated for IQ/OQ/PQ protocols?
Yes. The MJ-100F-I supports full qualification: Installation Qualification (IQ) via dimensional verification and electrical safety check; Operational Qualification (OQ) using NIST-traceable PT100 probes per ISO 14644-3 Annex B; Performance Qualification (PQ) via mapping per ASTM E2297-22.
Does it support humidity control?
No—the MJ-100F-I model does not include active humidification. For combined temp/humidity control, consider the MJ-100-II variant, which offers programmable RH regulation from 60–85% RH with ±5% RH accuracy.
What calibration standards are recommended for routine verification?
We recommend annual verification using a calibrated reference thermometer (e.g., Fluke 1523 with 0.02 °C uncertainty) and at least nine spatially distributed Class A PT100 sensors per ICH Q5C guidance for incubator mapping.