Zehnder design grilles

Where clean air meets clean design

 

Grilles are the only visible part of a ventilation system, so we believe they should do more than function well. They should fit beautifully into your home. That’s exactly what this new portfolio was designed to do.

It consists of two distinct lines: the Classic Line, with familiar forms, clean geometry and timeless finishes, and the Design Line, which adds a more expressive look with like high-gloss glass-look. Each grille is carefully developed to perform quietly, install seamlessly and enhance the space it lives in.

Along the way, we involved potential users: homeowners, installers, planners and architects. Their input did more than confirm which styles people liked most. It helped us spot the designs with real potential.

This page invites you to discover the story behind the grilles; how they were developed, what sets them apart and why airflow has never looked this good.

We wanted each grille to feel like a part of the interior, not just a technical detail. Something that works quietly and looks like it belongs.

Gabriel Pistorius, product designer

Classic Line 

What’s the idea behind it? 

The Classic Line is our response to a portfolio that had become too fragmented, full of inconsistencies and legacy designs. Project Forest gave us the chance to rebuild, with a cleaner, more logical range that works across markets.  

We kept the Italian city names for familiarity, but new designs like Milano and Bologna now raise the bar for the entire Classic Line assortment. They set a new standard in both appearance and performance; combining familiar forms with smarter detailing and lower pressure drop. 

Here’s what makes this range a clear step forward: 

Installation without surprises

We’ve kept the mounting methods professionals know — and added a few smart improvements. Every grille installs smoothly, stays firmly in place, and performs reliably over time. Even on slightly uneven walls or ceilings.

Every pattern in every shape and finish

All patterns are now available in both round and rectangular shapes, and in two finishes: white matte and stainless steel. No more mismatched combinations — everything fits together perfectly.

More logic, less complexity

We’ve simplified the range by removing overlapping models and low-demand variants. The result: a clearer, more intuitive selection that’s easier to work with.

Familiar, but better

Rendering Zehnder ComfoGrid DN125 via Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid DN125 via Comfortable indoor ventilation Top view
Classic made contemporary

ComfoGrid Milano

Inspired by timeless Italian design, the Milano blends soft curves with clean round perforations. Designed with a subtle 3D pattern and a dot/line line signature, it’s the modern evolution of our best-seller, Venezia. Just like its namesake city, Milano mixes classic taste with bold functionality. 

Avaliable in shapes: 

Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
A floral twist on fresh air

ComfoGrid Bologna

Meet Bologna. The floral hole pattern echoes classic architecture. Think countryside villas or high-ceilinged townhouses. Designed with renovation projects in mind, it offers standout airflow performance. It’s the quietest grille in the line, thanks to its generous open surface.

Avaliable in shapes: 

Rendering Zehnder ComfoGrid CLRF/TVA DN125 round Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid CLRF/TVA DN125 round Comfortable indoor ventilation Top view
A clean, timeless look and trusted performance

ComfoGrid Venezia

With balanced proportions, Venezia is a quiet classic. Its straightforward design with evenly spaced round perforations offers reliable performance. ComfoGrid Venezia proofs that good design stands the test of time: it has been a favourite among professionals for years.

Avaliable in shapes: 

Is it for you?

This range is ideal for installers and contractors working on new-build single-family homes, where ventilation grilles play a significant role in ensuring balanced, efficient airflow throughout the living space. The Classic line offers a reliable, familiar solution that integrates seamlessly into a wide variety of interior styles and building concepts.

It’s designed for professionals who not only appreciate a clean, timeless appearance, but also value the practical advantages that make everyday work easier. The Classic line delivers what matters most on-site: products that install quickly, fit accurately, and perform consistently over time. With dependable quality and thoughtful design, these grilles provide a solid, trusted choice for modern residential projects.

Classic Line is available:

ComfoGrid CLD

Classic made smarter — reliable performance with timeless design.

ComfoGrid CLD wide

Built for every space - faster fitting, lasting performance. 

ComfoGrid CLF

Built for strength — designed for simplicity.

ComfoGrid CLRF/TVA

Classic design - trusted airflow for every space.

Design Line

What’s the idea behind it? 

The Design Line gave us space to try something bolder. We explored new shapes, materials and ways to let the grille stand out instead of blend in. 

Not every idea made it, but one unexpected success was the glass-edge frame, originally a workaround from a supplier. It ended up being the perfect way to visually separate this line from the rest. The names are different too. They are drawn from gemstones to match the more refined, elegant feel. 

Here’s what makes this range different from rest: 

Distinctive look and feel

These grilles make a visual statement. From the carefully designed patterns to the sleek glass-look frame, they’re meant to be seen—not hidden.

Higher-end materials and finishing

The glass-look trim brings definition and depth, giving each grille a refined, modern edge that sets the Design Line apart.

Designed to start conversations

Some grilles blend in. This one stands out. The Design Line draws attention, sparks interest, and adds a sense of style that influences every choice around it.

Designed to be seen 

Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
A bold gem with a sharp edge

ComfoGrid Rubino

Rubino makes a statement. Its hexagonal hole pattern and high-gloss glass-look finish give it a jewel-like presence. It’s inspired by the ruby: bold, angular and unforgettable. A true conversation starter for interiors that don’t play it safe.

Avaliable in shapes: 

Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Refined. Radiant. Just right.

ComfoGrid Topazio

Topazio brings balance to your interior. Its minimalist lines and translucent frame evoke the clarity of topaz, elegant but grounded. Topazio’s beauty lies in its symmetry, simplicity and ability to fit effortlessly into modern living. 

Avaliable in shapes: 

Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Rendering Zehnder ComfoGrid CLRF/TVA Comfortable indoor ventilation Top view
Quiet luxury with a cool edge

ComfoGrid Zaffiro

Zaffiro, Italian for sapphire, reflects depth, calm and clarity. It’s a cool grille with a warm soul. Its rectangular shape and smooth glass-look edges offer a subtle contrast that lifts any room. Like the gem it’s named after, Zaffiro feels timeless and precious. 

Avaliable in shapes: 

Is it for you?

The Design Line is perfect for spaces where visual impact matters just as much as airflow. It’s ideal for architects, interior designers, premium renovation projects, or homeowners who want to upgrade not only performance but also the overall look of their living space.

While the Design Line is used in smaller quantities, expectations are higher. Its distinctive glass-look edge frame brings elegance and refinement — but it also has one limitation: these grilles are not suitable for floor installation, which is why a CLF version is not available.

Because of the raised glass-look edge, there’s a risk of tripping or bumping into sharper corners if installed at floor level. The surface may also be more prone to scratches or marks from shoes, furniture, or cleaning equipment.

Design Line is available:

ComfoGrid CLD Design Line

Designed to be seen, engineered to perform. 

ComfoGrid CLRF/TVA Design Line

Designed to be seen – engineered to perform. 

Created to be seen
Our grilles combine outstanding design with lasting performance. Each piece is carefully crafted to complement any interior — turning functional ventilation into a design feature that enhances the space.

Behind the grille – smart design meets convenience

Smart QR technology

Each grille includes a discreet QR code for quick filter tracking and easy reordering. Maintenance reminders are now just a scan away.

Simple service management

Every product comes with an ownership card — a handy place to record filter changes and installer details for future service needs.

Optimised filter design

Our new square-shaped filters reduce material waste and feature a larger surface area, capturing more dust and lasting longer.

Innovative performance

We’re developing an accordion-style filter design for even better dust retention and extended filter life — ensuring lasting performance.

Pinned to perfection – smarter, stronger connections

Every detail matters. Our updated TVA frame now uses a single central pin — no glue, no hassle — for faster installation and a secure, sustainable fit.
Made from durable recycled polymer, it replaces older materials to reduce environmental impact while improving performance and longevity.
Because with Zehnder, even the smallest parts are designed to make a big difference.

Airflow matters – efficient performance through smart design

What is pressure drop?
Pressure drop is the resistance air meets as it passes through a grille or valve. The lower the pressure drop, the more freely air flows — reducing energy use and ensuring quieter operation.

Our latest ComfoGrid designs are engineered for smoother airflow and improved efficiency, outperforming previous models while maintaining Zehnder’s signature balance of comfort and performance.

 

Note: Luna valves use a different airflow principle (the Coanda effect), creating a unique air distribution while achieving similarly efficient results.

How to commission your grilles

Design grilles must always be used in combination 
with a Zehnder ComfoSet. This module is used to 
commission a ventilation system that includes nonadjustable valves or decorative grilles. 
It can be installed either centrally at the distribution 
unit or locally at the end of a Zehnder ComfoTube 90, 
just before the plenum or grille. The ComfoSet enables 
silent airflow reduction, with interchangeable discs that 
allow resistance to be adjusted between 20% and 75%

Any questions? Please send us a message.

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