There’s room for clean air even in the smallest space – exhaust air purification for the bistro
Odorless cooking – even without a large technical room or outdoor chimney
Small bistros, cafés, and snack bars often lack the space for traditional exhaust air systems. Access to shafts or roof ducts is also frequently unavailable. Nevertheless, building authorities, neighbors, and operators demand an odor-free and hygienic solution for kitchen exhaust air.
With oxytec plasma technology, kitchen exhaust air can be cleaned safely and compactly even in the smallest of spaces – without odors, without activated carbon, and without the need for large technical centers.
What would you like to know?
Simply put your question to our AI. They will answer you individually:
Typical emission sources in bistro operations
| emission source | Typical pollutants | Special features |
|---|---|---|
| Hotplates, grills, pans | Grease mist, smoke, odors | Local, dense emission source |
| Deep fryer | Oil aerosols, VOCs | Very strong odors, heated fats |
| Preparation & cleaning | Cleaning chemicals, moisture | Varying levels of contamination, sporadic |
| Reheating & cooking | VOCs, aromas, moisture | Diffuse, but odor-relevant |
Why Oxytec exhaust air systems are ideal for bistros
Space-saving – for ceilings, walls, or kitchen hoods
Odorless – thanks to effective plasma technology
Low maintenance & hygienic – no activated carbon, no chemicals
Approval-ready without roof ducting
Ideal for city centers, food courts, and small dining areas
Legal requirements
VDI 2052 / VDI 3894 / TA Luft
- Requirements for grease separation, odor reduction, air flow
- Proof of cleaning effect recommended (e.g., olfactometry)
Building regulations / fire protection
- No open flame
- Systems with metal housing → suitable for fire protection
- Optional ATEX-free version
Do you have limited space but high demands?
With Oxytec plasma technology, exhaust air purification is possible even where no conventional solution is feasible.
Contact us—we will design the right system for your kitchen.
Get a no-obligation consultation now—for clean air, even in the smallest of spaces.
oxytec technologies in use
Compact plasma units
- Neutralize grease, VOCs, and odors directly in the air stream
- Installation in or above the hood, no external technical center required
- No flame, no chemical additives – safe to operate
- Optional pre-filter for aerosols
Odorless outlet
- The purified air can be discharged indoors or at a low level
- No chimney or external air shaft required
- Odorless thanks to controlled oxidation
The technical solution from Oxytec
Typical areas of application
Small bistros and cafés with open kitchens
Indoor dining areas without ventilation shafts
Mobile kitchens, food containers, event catering
Food courts, train stations, airports, shopping centers
Company restaurants in offices or hotels
Your advantages with oxytec
No ductwork required – ideal for existing kitchens
Space-saving, can be integrated directly into the cooking area
Clean air even without an external chimney
Low maintenance, no filter replacement
High odor reduction, legally compliant, and sustainable
FAQ – Frequently Asked Questions
How does exhaust air purification work without an external chimney or roof duct?
With oxytec’s compact plasma technology, kitchen exhaust air is purified directly at the source—e.g., above the hood or in a recirculation module. The purified air can then:
- remain in the room (recirculation mode)
- or be discharged odor-free at a low height (e.g., facade, inner courtyard)
No roof access or external exhaust air duct is required.
What does the system remove from the air?
The plasma system reliably neutralizes:
- Grease mist and aerosols
- Odors and VOCs (e.g., from oil, meat, spices)
- Smoke and vapors from frying or deep-frying
Pre-separators or filter stages can be added as an option – for kitchens with intensive use.
How much space does the system require?
The compact units are:
- space-saving and can be mounted directly above or behind the hood
- available in various modules for wall, ceiling, or base cabinet mounting
- also suitable for container kitchens, food trucks, or small spaces
oxytec designs the system to fit your space perfectly.
How loud is it during operation?
Oxytec systems are very quiet. There is:
- No noise from combustion
- only low operating noise from air flow and filtering
- Soundproofed versions are available on request
Ideal for open kitchen areas in bistros and cafés.
How often does maintenance need to be performed?
- The plasma unit requires little maintenance (no activated carbon!).
- Depending on the duration of use, we recommend:
– Cleaning the pre-filters: every 2–6 weeks
– Inspecting the system: every six months - Optional: automatic filter check or service contract
What about permits and regulations?
The systems meet all requirements for bistros in accordance with:
- VDI 2052 (Ventilation and air conditioning systems in kitchens)
- VDI 3894 (Odors in exhaust air systems)
- TA Luft (emissions in sensitive environments)
On request, we can also provide you with proof of effectiveness (e.g., olfactometry or VOC measurement) for the building authority or other authorities.
What distinguishes Oxytec from conventional activated carbon?
| oxytec Plasma | Activated carbon filter |
|---|---|
| No consumables | Regular filter replacement necessary |
| Compact design | Bulky filter boxes |
| Odorless & grease-free | Odors often only reduced |
| Flame-free & safe | Rarely fireproof |
Are there any subsidies available for this technology?
Yes – subsidies are available for, among other things:
- Energy-efficient ventilation technology (BAFA, GEG-compliant)
- Ventilation systems in the catering industry (regional programs)
- Renovation or conversion in inner-city locations
We are happy to help with documentation and applications.
