BR300 Micro-Negative Pressure Exhaust Ventilator

The BR300 continuously extracts stale indoor air, creating slight negative pressure that prevents odors and pollutants from accumulating. Fresh air naturally flows in from other areas , keeping small rooms clean, dry and comfortable-without opening windows. Perfect for bathroom & toilet, storage room, walk-in closet, laundry area and small commercial spaces.

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The Menred BR300 Exhaust ventilator — Intelligent micro-negative pressure control for a cleaner, fresher, and quieter living environment. Experience effortless air purification with advanced smart sensing and ultra-low energy consumption.

Smart Detection & Automatic Operation

Equipped with built-in sensors, the BR300 automatically monitors humidity, PM2.5, and TVOC levels. It intelligently adjusts fan speed in real-time to efficiently expel stale air, smoke, and unpleasant odors. With its energy-saving variable frequency control, the system ensures optimal performance with minimal power consumption (3–32W), achieving both comfort and sustainability.

Flexible Control Options for Easy Integration

The BR300 offers multiple operation modes to suit diverse installation environments: plug-and-play, RS-485 control, or dedicated smart controller. This flexibility makes it suitable for various applications.

Ultra-Quiet Performance with Floating Vibration Isolation

Engineered for silence, the BR300 adopts a floating vibration isolation structure combined with noise-reducing materials, resulting in whisper-quiet operation at only 22–28dB(A) .