Blauberg Envira 45 Single Room Alternate Flow Heat Recovery Fan for Mould Control | ENVIRA-45

Combat condensation, damp, and black mould with the Blauberg Envira 45 Single Room Heat Recovery Fan, a next-generation ventilation system designed to improve indoor air quality while saving heat and energy.

The Envira 45 uses advanced alternate flow heat recovery technology, extracting stale, humid air and capturing its warmth before reversing airflow to draw in fresh, filtered air. This pre-warmed ventilation cycle runs continuously, keeping your room dry, fresh, and comfortable — all while retaining up to 75% of the heat that would normally be lost through a standard extractor fan.

Perfect for bathrooms, bedrooms, kitchens, and utility rooms, the Envira 45 provides silent, energy-efficient airflow to prevent damp and mould growth. It’s easy to install in external walls, consumes just 2.4 watts, and operates quietly at only 21dB, making it ideal for both domestic and social housing applications.

Backed by Blauberg’s renowned German engineering, the Envira 45 is trusted by landlords, homeowners, and installers across the UK for reliable, regulation-compliant mould prevention — including full support for Awaab’s Law compliance.

Features

• Prevents mould, damp, and condensation with continuous heat recovery ventilation
• Up to 75% heat recovery efficiency – reduces energy waste and keeps rooms warm
• Alternate flow system – extracts and supplies air every 70 seconds for balanced airflow
• Ultra-quiet operation (21 dB) – suitable for bedrooms and bathrooms
• Energy-efficient performance – uses only 2.4 watts
• IPX4 rated for safe bathroom installation
• Boost airflow up to 45 m³/hour (13 l/s) – ideal for smaller rooms
• Low profile design fits neatly into external walls (305–380mm depth adjustable)
• Humidity sensor and remote control – automatic and manual operation modes
• Night mode – dims indicators and reduces fan speed for silent overnight operation
• Landlord lock feature – prevents tampering in rented properties
• Supports Awaab’s Law compliance for professional installations

• Model: ENVIRA-45
• Airflow: Up to 45 m³/hour (13 l/s)
• Noise Level: 21 dB(A) @ 3m
• Heat Recovery Efficiency: Up to 75%
• Power Consumption: 2.4W
• Voltage: 220–240V AC, 50Hz
• Protection Rating: IPX4
• Dimensions:
• Wall Depth: 305–380mm (adjustable)
• Core Drill: 115mm
• Diameter: 150mm
• Installation Type: Wall-mounted single-room heat recovery fan
• Control Options: Remote control with adjustable humidity and night mode
• Application: Mould, damp, and condensation control
• Manufacturer Warranty: 5 Years

Ideal Applications

• Bathrooms and shower rooms
• Bedrooms and living areas
• Kitchens and utility spaces
• Social housing and landlord properties
• Refurbishment and retrofit projects