Xpelair is launching two new continuous extract fans in the UK: the Everdri dMEV for standard wet rooms and the Everdri dMEV MAX for longer duct runs. This guide covers what the Xpelair Everdri dMEV range does, how it helps with Part F and Awaab's Law and what installers should plan for ahead of launch. Both models are listed as "coming soon", so we've flagged the figures Xpelair has yet to publish.
Need a fan for a job this week? Browse our current dMEV fans while you wait for Everdri stock.
What is a dMEV fan?
A dMEV (decentralised mechanical extract ventilation) fan is a single-room extractor that runs all the time. It ticks over at a low trickle rate, then boosts when humidity rises or the room is in use.
That is the key difference from a standard intermittent fan, which only runs when someone flicks the light switch. A centralised MEV system does the same job from one ducted unit serving every wet room; dMEV puts one fan in each room instead, which suits refurbishments where running ducts through the whole house isn't practical.
Continuous extraction removes moisture before it condenses on cold walls and window reveals. That is why dMEV has become a common fix for damp and mould in social housing.
Everdri dMEV vs Everdri dMEV MAX: which do you need?
Pick the standard Everdri dMEV for short, direct runs and the Everdri dMEV MAX when the duct has to travel further. Every metre of duct and every bend adds resistance and cuts delivered airflow, so the MAX is built to hold extraction rates over longer runs.
| Model | Designed for | Key technology | Voltage options |
|---|---|---|---|
| Everdri dMEV | Bathrooms, kitchens, utility rooms and WCs; new build and retrofit | Adaptiflow Sensing, Ghost Air Movement Technology | 240V and SELV |
| Everdri dMEV MAX | Installations with longer duct runs | Adaptiflow Sensing, Spiraflow Technology, seven-blade Heptasickle impeller | 240V and SELV |
Xpelair hasn't yet published maximum duct lengths or fan curves for either model. Until it does, treat through-wall and short ceiling runs as dMEV territory, and specify the MAX for loft or ceiling-void runs to an external terminal.
What makes the Xpelair Everdri dMEV different?
The headline feature is hands-off humidity control, but the installer benefits are in commissioning and maintenance.
Adaptiflow Sensing
The fan runs at a low background rate and boosts automatically when humidity climbs, then drops back once the moisture has cleared. Occupants don't need to touch a switch. That matters in rented homes, where tenants often turn fans off to save noise or money.
Quiet running
Xpelair describes the range as near silent, using precision-engineered components and airflow design to cut noise. A quiet fan is less likely to be isolated by the tenant. Published dB(A) figures are still to come.
SmartFit Technology and the ConfigR App
SmartFit, flexible wiring options and setup through the ConfigR App are aimed at faster fitting. The app also reads commissioning data, performance figures and runtime history straight from the fan, and you can download past extraction and boost data. For landlords, that is a record they can show when asked what was done about a damp complaint.
EasiSwitch cassette
All the working parts sit in a replaceable cassette that swaps out in seconds. The spigot, backplate and cover stay on the wall, so there's no rewiring and no redecorating. Used cassettes can go back to Xpelair for reuse or recycling.
How does Everdri help with Part F and Awaab's Law?
Everdri is designed to meet Part F ventilation rates, and Xpelair says that in many applications two units can exceed the Part F rates for a three-bedroom home. That is a small number of fans to buy, fit and commission per property.
For continuous extract, Approved Document F (2021 edition) sets minimum rates of 13 l/s for a kitchen, 8 l/s for a bathroom or utility room and 6 l/s for a WC.
Awaab's Law in brief
Awaab's Law came into force in England on 27 October 2025 and applies to social housing tenancies. Landlords must investigate significant damp and mould within 10 working days, make the home safe within a further 5 working days and issue a written summary within 3 working days of the investigation. Later phases, due in 2026 and 2027, extend the rules to other hazards.
A fan alone doesn't make a landlord compliant. What Everdri offers is a fix that tackles the cause, runs without tenant input and logs its own runtime data through ConfigR, which helps landlords evidence the work.
What this means
If you rent from a council or housing association, your landlord now has fixed deadlines to deal with serious damp and mould. A continuously running fan in each wet room is one of the most common ways they stop it coming back.
Xpelair Everdri dMEV key specs
These are the specs Xpelair has confirmed so far; airflow, sound and power figures will be added at launch.
| Attribute | Everdri dMEV / dMEV MAX |
|---|---|
| Operation | Continuous trickle with automatic humidity boost (Adaptiflow Sensing) |
| Applications | Bathrooms, kitchens, utility rooms, WCs |
| Voltage | 240V and SELV low-voltage variants |
| IP rating | IPX5 models available, suitable for Zone 1 |
| Commissioning | ConfigR App, with downloadable runtime and boost history |
| Maintenance | EasiSwitch replaceable cassette |
| Accessories | Window mounting kits and décor plates |
| Airflow (l/s), sound (dB(A)), SFP (W/(l/s)), warranty | To be confirmed at launch |
What should installers plan for?
Choosing between 240V and SELV is the first decision on a bathroom job. The SELV variant runs from a safety isolating transformer, which must sit outside the bathroom zones and gives more flexibility on fan position. IPX5 models can go in Zone 1, but check the zone and IP rating against BS 7671 Section 701 (bathrooms) before fixing.
Commission every fan with the ConfigR App and record the settings. Approved Document F requires mechanical ventilation to be commissioned, with airflow rates measured and the results passed to building control, so the app data gives you a head start on that paperwork.
Follow Xpelair's installation instructions for isolation and fusing once they are released and plan duct routes early so you know whether the job needs the MAX.
Safety note
Everdri fans are mains or SELV electrical products fitted in wet rooms. Installation must be carried out by a competent electrician. Work in a room containing a bath or shower can be notifiable under Part P of the Building Regulations, so use an installer registered with a competent person scheme such as NICEIC or NAPIT.
Who is the Everdri dMEV range for?
Social housing contractors get the most from Everdri. The fans fix the cause of condensation, need no tenant input and produce runtime data landlords can file against an Awaab's Law case.
New build installers get a Part F route that can need as few as two fans in a three-bedroom home. Electricians doing bathroom and kitchen refits get SELV and IPX5 options for tight layouts.
Homeowners with recurring mould get a fan that runs quietly in the background. Ask your electrician whether the standard model or the MAX suits your duct route.
Xpelair Everdri dMEV FAQs
What is the Xpelair Everdri dMEV?
The Everdri dMEV is a range of continuously running extractor fans from Xpelair. Each fan ventilates one wet room, running at a low trickle rate and boosting automatically when humidity rises through Adaptiflow Sensing. It is designed for bathrooms, kitchens, utility rooms and WCs in new build and retrofit homes.
When will the Everdri dMEV be available?
Xpelair lists both the Everdri dMEV and Everdri dMEV MAX as coming soon and hasn't announced a release date. You can register interest on the Xpelair website. We'll update this page with stock, pricing and full specifications as soon as they are confirmed.
What is the difference between Everdri dMEV and dMEV MAX?
The standard Everdri dMEV suits short, direct duct runs. The Everdri dMEV MAX is designed for longer duct runs and uses Spiraflow Technology with a seven-blade Heptasickle impeller to keep extraction strong. Both have Adaptiflow Sensing, ConfigR App setup and 240V or SELV options.
Does the Everdri dMEV meet Part F?
Xpelair says the Everdri dMEV range helps meet Part F ventilation requirements and that in many applications two units can exceed the Part F rates for a three-bedroom home. Confirm rates for your property with the airflow data in Xpelair's datasheet once it is published.
Can the Everdri dMEV be fitted in Zone 1?
Yes, IPX5-rated Everdri models are suitable for Zone 1. A SELV variant is also available. Your electrician should confirm the zone, IP rating and supply arrangement against BS 7671 Section 701 before installation and any SELV transformer must sit outside the bathroom zones.
Will a dMEV fan help with Awaab's Law?
A dMEV fan helps landlords tackle the cause of condensation and mould, which supports their duties under Awaab's Law. It doesn't replace the required investigation and repair timescales. Everdri's ConfigR App also stores runtime and boost data, which landlords can use as a record of the ventilation fitted.
Can I install an Everdri fan myself?
No. Everdri fans are electrical products for wet rooms, so a competent electrician should install them. Work in a bathroom or shower room can be notifiable under Part P, so choose an installer registered with a scheme such as NICEIC or NAPIT.
Bottom line
The Xpelair Everdri dMEV range looks built for the jobs installers are doing most right now: damp and mould fixes in social housing and Part F compliance on new builds. Automatic humidity boost, app commissioning with downloadable data and a swap-out cassette all cut return visits. The standard dMEV covers most wet rooms and the MAX handles the longer duct runs.