Your Bedroom Air Is Costing You Sleep. Here’s the Invisible Culprit.

That ‘used-up’ feeling when you wake? It’s often a clear signal that the CO2 and humidity levels in your bedroom have spiked overnight. The air in your sanctuary is subtly resisting your recovery.

Continuous ventilation is no longer a luxury; it’s a non-negotiable health requirement. We engineered AUREN to reset the baseline of indoor air quality without you ever having to notice it’s running.

At 4dB(A), it runs quieter than the sound of your own breathing, providing near-silent, continuous heat recovery. The result is air that is constantly fresh, tempered, and free from the pollutants that diminish restorative sleep.

Reclaim the integrity of your bedroom. Prioritise your rest, health, and peace of mind with intelligent air exchange.

AUREN Decentralised Single-Room MVHR Ventilation Fan Unit (srMVHR)

Price range: £480.00 through £619.00 + VAT

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That ‘used-up’ feeling when you wake? It’s often a clear signal that the CO2 and humidity levels in your bedroom have spiked overnight. The air in your sanctuary is subtly resisting your recovery. Continuous ventilation is no longer a luxury; it’s a non-negotiable health requirement. We engineered AUREN to reset the baseline of indoor air quality without you ever having to notice it’s running. At 4dB(A), it runs quieter than the sound of your own breathing, providing near-silent, continuous heat recovery. The result is air that is constantly fresh, tempered, and free from the pollutants that diminish restorative sleep. Reclaim the integrity of your bedroom. Prioritise your rest, health, and peace of mind with intelligent air exchange.

4dB(A): The Decibel That Reclaims Rest. Quieter Than You.

Ventilation should be an invisible utility. In the bedroom, most systems fail the primary test: silence. The quietest hum registers in the human auditory cortex as a threat—a subtle distraction that disrupts the deep, restorative phase of sleep. We refuse to sell a product that solves one problem (air quality) by introducing a new one (noise pollution).

The New Benchmark of Silence

Noise is measured in Decibels (dB). On the logarithmic scale, every 10dB(A) increase represents a doubling of perceived sound. Typical background fans can register 20-30 dB(A)—the volume of whispering. This is the volume most manufacturers settle for.

The AUREN system, operating in Night Mode, runs at a tested 4 dB(A) @ 3 metres.

We don’t compare it to competitors. We compare it to you:

Normal Human Breathing: 10 dB(A)
AUREN on Night Mode: 4 dB(A)

The unit is not just quiet. It is genuinely barely detectable to the human ear. It removes noise from the equation entirely, leaving nothing to stop your recovery.

The CO2 Threat and the Silent Solution

Why this dedication to silence? Because the other invisible threat is CO2. When you sleep, CO2 levels in an unventilated room spike dramatically. This is the real cause of that groggy, ‘used-up’ feeling you wake with.

The AUREN provides continuous decentralised MVHR, silently exchanging stale, CO2-rich air for fresh, filtered air, while recovering up to 80% of your indoor heat.

The 4dB(A) performance means you can run the system continuously, as Part F requires, without fear of acoustic interruption. It is the only way to guarantee both compliance and true silence.

The Commercial Power of Subtraction

We didn’t add a feature. We removed a problem. The single biggest barrier to adopting continuous ventilation in the bedroom—noise—has been eradicated.

The Result: Sleep is restored. Parental guilt about mould and poor air is eliminated. Part F compliance is achieved seamlessly.

This is not simply better engineering. This is engineering based on the behavioural truth that rest is non-negotiable.

Part F: What is the Minimum Ventilation Standard for Bedrooms?

The UK Building Regulations Approved Document F (Ventilation) sets the baseline for air quality in new builds and certain refurbishments. For a habitable room like a bedroom, compliance hinges on two things: Background Ventilation and Purge Ventilation.

Here is what you need to know, without the jargon:

1. Background Ventilation (The Continuous Flow)

This is the system that ensures fresh air is constantly entering the room, even when the property is locked up and you are asleep.

The Problem with the Default: The minimum acceptable standard is often met with a trickle vent—a small opening in a window or wall that relies on wind pressure to work. These are widely ineffective, cause draughts, and compromise security and sound-proofing.
The Requirement: Every habitable room (like a bedroom) must have a reliable, continuous means of air exchange, typically rated in litres per second (l/s). Modern Part F guidance promotes systems like continuous Mechanical Ventilation with Heat Recovery (MVHR) because they provide a guaranteed, measured flow rate that trickle vents cannot match—and they do it while preserving energy.
Your Solution: The AUREN system provides guaranteed, measured, and continuous air exchange with heat recovery, exceeding the minimum flow rates mandated for background ventilation in a controlled, energy-efficient way.

2. Purge Ventilation (The Rapid Boost)

This is the ability to rapidly clear out a large volume of air, usually for situations like deep cleaning or if cooking fumes drift into the room.

The Requirement: Every habitable room must have the capacity to ‘purge’ the air, typically via a window that can open to a minimum size.
Your Value: While a window fulfils the technical purge requirement, our systems are designed to keep the room healthy without ever needing to rely on opening a window. You get the rapid air change function, but you retain the thermal comfort and security that opening a window compromises.