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Save energy – controlled residential ventilation with hygiene

UV-C and plasma technology for healthy air without germs, mold, and odors

Modern buildings are airtight, energy-efficient, and intelligently ventilated—but what happens in the ventilation ducts? Germs, mold spores, bacteria, and odor molecules accumulate in controlled residential ventilation (CRV) systems and can spread unhindered throughout the entire house.

With Oxytec’s UV-C systems, your residential ventilation becomes a hygienically safe source of fresh air – without the need for filter changes or costly renovations.

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Typical challenges in KWL

System area Common problems Consequences
Air ducts, heat exchangers Biofilm, mold, germs Odors, pathogens, hygiene issues
Supply air filters, recirculation mode Germ growth, clogged filters Loss of performance, contamination of indoor air
Condensation areas Moisture, microbial growth Spore formation, sources of odors
Entire system with low air exchange Air quality decreases under high stress Fatigue, concentration problems, infection

Why choose Oxytec for your residential ventilation?

Disinfection of circulating air – with UV-C without chemicals
Germ reduction of up to 99.999% – even at low air exchange rates
No ozone formation, no odor pollution, no filter changes
Suitable for central and decentralized ventilation systems
Low maintenance, energy-saving, silent

Legal requirements

VDI 6022 – Hygiene requirements for air handling units

  • Hygiene is mandatory, even with controlled ventilation
  • UV-C is a recognized measure for ensuring hygiene

DIN 1946-6 – Ventilation of residential buildings

  • Air quality must not be compromised by the system itself
  • Sterility and the prevention of mold growth are required

Good air is part of healthy living.
Oxytec brings hygiene to your home ventilation system—safely, efficiently, and sustainably.

Get advice now: your clean solution for fresh air at home.

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  • Prevents biofilm in heat exchangers
  • Significantly reduces cleaning effort
  • Extends service life and efficiency

UV IB

  • Compact, quiet, individually scalable
  • For single-family homes, apartment buildings, commercial premises
  • No conversion necessary – easy integration

Cleanair Plasma KWL

Typical areas of application

  • Single-family homes with KWL systems
  • Residential complexes and apartment buildings
  • Nursing homes, schools, daycare centers
  • Commercial residential use, law offices, medical practices

Your advantages with oxytec

Hygienically clean air throughout the entire house
Safe operation without mold, odors, or germs
Energy savings are maintained
Can be retrofitted into existing systems of any size
Health and value enhancement for any property

FAQ – Frequently Asked Questions

How can I ensure that controlled residential ventilation works hygienically?

By reliably deactivating microbiological contaminants such as mold, bacteria, or viruses in the system.
Oxytec offers UV-C technology for air disinfection that can be integrated directly into the air duct or recirculation units. This keeps the room air hygienically clean at all times—without the need for additional fresh air supply.

Are there any regulations I need to observe regarding the hygiene of KWL systems?

Yes. Relevant guidelines are:

  • VDI 6022 – Hygiene requirements for air handling units
  • DIN 1946-6 – Ventilation of residential buildings
  • EN 16798-1 – Requirements for air quality and comfort
    Our systems comply with these standards and contribute to the legally compliant design of the system.

What distinguishes Oxytec systems from conventional filters or pure air exchange systems?

Filters trap particles—but not viruses, spores, or many germs.
Oxytec uses UV-C light, which destroys microorganisms at the DNA level.
The advantage: germ-free air without air exchange, making it both energy-efficient and hygienic.

Can I retrofit UV-C modules into an already installed KWL system?

Yes. Our systems are modular in design and fit into:

  • Central ventilation units
  • Air ducts
  • Return air loops
  • Heat exchanger environments

Installation is usually possible without structural modifications.

How often do the UV-C components need to be serviced?
  • Light source life: approx. 9,000 operating hours
  • Maintenance: Replace light source once a year, visual inspection
  • No filters, no moving parts – low operating costs

Does UV-C technology produce ozone or other pollutants?

No—the UV-C sources used are ozone-free and approved for continuous operation in residential areas.
The radiation remains inside closed devices or channels and is safely shielded.

How does sterilization affect energy consumption?

Positive:
You can reduce the amount of outside air because germs are neutralized internally.
This means less heating or cooling loss, especially in winter and summer.

Is the solution also suitable for apartment buildings or residential complexes?

Yes—whether it’s a single-family home, apartment building, or retirement home:
Oxytec offers scalable systems for every installation situation.
We also support housing associations with hygiene concepts in accordance with standard specifications.