Why this is our most-recommended fan

• Built-in UKAS-calibrated airflow sensor — accurate l/s read-out for quick, confident commissioning and compliance

• Always-on protection: continuous trickle + humidity boost stops problems before they start

• Whisper-quiet & low-energy: EC motor for all-day running without the bill shock

• Set once, done: simple setup of trickle/boost and timer overrun

• Retrofit friendly: replaces noisy intermittent fans with minimal disruption

Key Features

• dMEV continuous ventilation for bathrooms, WCs and ensuites

• Integrated UKAS-calibrated airflow sensor for commissioning and verification

• Automatic humidistat boost + adjustable timer (typical 2–30 mins)

• Quiet, energy-efficient EC motor with selectable trickle/boost rates

• 100 mm (4") spigot; low-profile fascia for a modern look

• Backdraught shutter to reduce heat loss and draughts

• Wall or ceiling mounting; works with rigid/insulated ducting

• Helps meet UK Building Regulations Part F when correctly specified and commissioned

What’s Included

• PAS-SAFE-ECO-D100 fan unit with fascia

• Backdraught shutter (pre-fitted)

• Fixings and installation/user instructions

Ideal For

• Bathrooms, WCs, ensuites needing quiet, reliable 24/7 extraction

• Upgrades from intermittent fans to continuous moisture control

• Projects where documented airflow at commissioning is essential

Installation Notes

• Mount near the moisture source; keep duct runs short with gentle bends

• Use smooth rigid duct where possible; seal joints for airtightness

• Core-drill ~Ø110–115 mm for through-wall installs (check your kit)

• Provide an isolated fused spur; install to IET Wiring Regulations

• Use the on-unit UKAS-calibrated airflow display to set and record design trickle/boost rates

Maintenance

• Wipe fascia; vacuum inlet periodically

• Check backdraught shutter and duct seals annually

• Test humidity/timer functions seasonally; adjust set-points as needed

Technical Overview (drop your datasheet figures here)

• Duct size: 100 mm (4")

• Motor: EC/brushless, continuous trickle + boost

• Controls: Humidistat (adjustable RH) + timer overrun

• Sensing: Integrated UKAS-calibrated airflow sensor with l/s read-out

• Supply: 220–240 V AC, 50 Hz, fused spur

• Protection: IPX (confirm exact rating)

• Finish: White low-profile fascia, easy-clean polymer

• Mounting: Wall or ceiling