Nuaire FAITH-SELV-PLUS is a Safety Extra-Low Voltage (SELV) decentralized mechanical extract ventilation (dMEV) fan designed for continuous running in domestic wet rooms. The SELV feature means it operates at 24V DC, making it safe for installation within Zone 1 of a bathroom, directly in a shower or bath area where mains voltage fans are prohibited. 
Key Features and Benefits
Safety Extra-Low Voltage (SELV): Operates on 24V DC power, allowing safe installation in all bathroom splash zones (IPX4 rated).
Continuous Ventilation: Provides a constant, low background (trickle) flow rate of air to manage moisture and prevent condensation and black mould growth.
Intelligent Humidity Tracker: An integrated sensor constantly monitors humidity and automatically increases the fan speed (boost) when a rapid rise in moisture is detected (e.g., during a shower), returning to the trickle rate once the air clears.
Energy Efficient: Utilizes a low-wattage, brushless DC motor for minimal running costs and high efficiency, complying with the latest Building Regulations Part F and L.
Quiet Operation: Designed with minimal noise levels, it features a night-time delay function to prevent nuisance boosting during sleeping hours.
Flexible Installation: Suitable for wall, ceiling, and window mounting (ancillary kits required).
Low Maintenance: The filterless design allows the fascia to be removed easily without tools for simple cleaning.
Digital Control Panel: Features a 7-segment LED display behind the cover for precise commissioning and adjustment of flow rates (trickle from 5-20 l/s, boost from 6-29 l/s).
Daily Run Monitor: Records how often the fan boosts, which provides useful data for maintenance tracking, particularly in social housing applications.