Recirculation solutions for kitchens without external ducting

If you don’t have an external exhaust outlet, you need a recirculation solution.

It can be a hood designed specifically for recirculation or a hood equipped with a dedicated filtration system. There’s no mystery.

But the real question is: does it actually work, or will your home end up smelling like fried food? The answer is yes, it works, but only if the filtration system is up to the task.

What happens when there is no external duct?

With a conventional hood, smoke is expelled outside.

With recirculation, the air stays inside the kitchen and the home, so it must be treated properly:

  • Filter grease

  • Neutralise odours

  • Purify the air

In recirculation systems, the hood and filtration system work together. But real performance depends on the filtration technology.

The key is understanding that not all recirculation systems remove odours in the same way.

Many hoods include standard carbon filters. They work, but they have limitations:

  • They saturate faster

  • They may be insufficient in open-plan kitchens

That’s why advanced systems exist, solutions that don’t rely on a single filter but on different technologies depending on usage and performance needs.

Systems that truly make a difference

1. Plasma

For those who cook frequently and want maximum control.

The most advanced air purification solution, ideal if:

  • You cook daily

  • You prepare dishes with strong odours, grease or vapours

  • You have an open-plan kitchen

2. Textile filters

Designed to retain particles and simplify maintenance in integrated configurations. Installation requires no tools.

3. FC-Plus active carbon

A high-performance, balanced option for homes where cooking is frequent.

It absorbs odours better than standard carbon and offers longer durability. It is also biodegradable and generates no waste.

4. Ceramic cubes

A robust solution with sustained performance and high absorption capacity.

5. Standard carbon

Works well, although it requires more frequent replacement.

So… which filter do I need?

To choose correctly, consider your kitchen and how you cook:

  • Open-plan kitchen or intensive use: Plasma

  • Moderate use: Textile filters

  • Frequent normal use: FC-Plus active carbon (more sustainable) / Ceramic cubes

  • Small closed kitchen and occasional use: Standard carbon

More intormation

One important factor: maintenance

Recirculation works as long as the filter is in good condition.

Simple rule:

  • If you cook a lot, check it sooner

  • If you cook less, it will last longer

Need more information? Click here.

If you tell us about your kitchen and how often you cook, we can guide you toward the right FrecanAir solution and connect you with an official distributor.

FAQ

Which hood can I install without an external duct?
A recirculation hood.

Do hoods without external ducting work?
Yes, especially when equipped with advanced filtration systems such as plasma or high-efficiency active carbon.

How often should filters be replaced?
It depends on the system and usage.

Conclusion

A kitchen without external ducting is not a problem. The mistake is choosing without proper information or settling for a basic recirculation system when you actually need advanced performance.

With FrecanAir, the difference lies in filtration. And you notice it every day.

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