We are delighted to announce that we will be exhibiting at Interclima, taking place from September 28 to October 1, 2026.

The leading event for ventilation professionals will once again bring together all the major players in the industry.

A unique opportunity to explore market trends, discover the latest innovations, and discuss the challenges that will shape the projects of tomorrow.

Interclima 2026 will be the perfect occasion for us to showcase several new product developments while sharing our vision of residential and commercial ventilation: more efficient, more intuitive, and always focused on Indoor Air Quality (IAQ).

 

Discover the latest Anjos innovations

At the Interclima 2026, we will welcome you with a simple and educational approach, designed to help you (re)discover how a ventilation system works and better understand the importance of good Indoor Air Quality.

Because efficient ventilation plays an essential role in the comfort and well-being of occupants, IAQ will be more than ever at the heart of our presence at the show.

Through our latest innovations, we will offer you a practical approach to better understand the role of each component, its impact on air renewal, and its importance in the daily comfort of occupants.

 

Anjos expertise at your service

Interclima will also be an opportunity to discover our product range dedicated to ventilation and Indoor Air Quality, as well as to engage with our teams and benefit from their expertise.

Throughout the exhibition, the Anjos teams will be present to:

• Introduce you to our products
• Discuss your projects
• Answer your questions
• Share their professional expertise
  
  

A dedicated space for discussions will also allow professionals to discuss their projects, field challenges, and the specific needs of their installations.

 

An exclusive meeting

On Wednesday evening, we will also bring together some of our long-standing partners and clients for a friendly gathering organized alongside the show. A way to thank those who have placed their trust in us for many years and who contribute to the Anjos adventure.

Aboard a cruise on the Seine, this evening will allow us to continue the discussions and share an exclusive moment in an exceptional setting.

 

See you at Interclima?

📅 From September 28 to October 1^st, 2026
📍 Paris Expo Porte de Versailles
📌 Stand H7.3-L058 – Ventilation & Indoor Air Quality Zone

The entire Anjos team, along with the management members, Laurent, Christian, Guillaume, and Sacha Barbarin, look forward to meeting you for this new edition and discussing the challenges of ventilation and Indoor Air Quality with you.

When discussing air inlets, attention usually focuses on the visible product installed on the window. However, a much more discreet element plays an essential role in the system’s performance: the slot.

This opening, made on the joinery or roller shutter box, allows for the correct integration of the air inlet and ensures air passage under the conditions specified during certification tests. Even if it becomes almost invisible once installed, it remains essential for the proper functioning of the ventilation system, product compliance, and the overall quality of the installation.

An incorrectly sized cut can indeed have a direct impact on airflow, acoustic performance, airtightness, or even the finish quality of the installation.

 

What is a slot in an air inlet?

The slot corresponds to the opening made in the joinery to allow for the installation of the air inlet. It ensures air passage through the window and also allows the external hood to properly cover the opening to guarantee a clean and functional finish.

Behind this seemingly simple operation lies a crucial element for the product’s behavior.

Each air inlet is designed to operate with precise machining dimensions. These dimensions are not arbitrarily defined: they are validated during tests related to NF certification. Modifying the slot therefore means modifying the conditions under which the product was tested.

 

Why is a compliant slot so important?

A non-compliant slot can have direct consequences on several essential performances of the air inlet:

• Airflow
• Acoustic level
• Airtightness
• Finish quality
  
  

1. Ensuring proper airflow

The primary role of an air inlet is to ensure indoor air renewal.

To function correctly, the airflow must correspond to the values specified by the manufacturer and validated during NF tests. A slot that is too small can limit air passage and reduce the product’s aerodynamic performance. Conversely, an opening that is too large can alter the behavior of the air inlet and disrupt flow regulation.

Adhering to the recommended dimensions therefore ensures proper indoor air renewal and maintains the stated performance.

2. Preserving acoustic performance

The acoustic performance of air inlets is also directly linked to the machining dimensions.

As part of NF certification, acoustic tests are carried out with a precise installation and slot configuration. A non-compliant cut can create additional air passages or modify air circulation through the product.

Result: the expected acoustic attenuation may be reduced.

In dwellings located in urban environments or near noisy areas, this point is particularly important to ensure occupant comfort.

3. Maintaining good airtightness on the joinery

The slot also influences the overall airtightness of the window.

A poorly executed opening can generate:

• Parasitic air infiltrations,
• Energy performance losses,
• Waterproofing defects depending on the installation configuration.

A compliant slot allows the product to integrate correctly with the joinery and helps preserve the initial performance of the window.

4. Ensuring a clean and durable finish

Aesthetic appearance also matters on site.

When the slot dimensions are respected, the external hood perfectly covers the cut. The installation is then cleaner, more uniform, and more durable over time.

Conversely, an unsuitable cut can reveal visible defects and detract from the perceived quality of the installation.

 

ANJOS Air Inlet Slot Dimensions

At ANJOS, each of our NF certified air inlets has specific slot dimensions:

ISOLA

• Slot: 354 x 12 mm
  
  

ESEA

• Slot: 354 x 12 mm
• or 250 x 12/15 mm depending on the models
  
  

MINI ESEA

• Slot: 250 x 12 mm
• or 172 x 12 mm depending on the versions
  
  

EM 2 A

• Round notch of Ø 125 mm
  
  

These different formats allow us to meet installation constraints and joinery specificities, while maintaining the performance validated during certification tests.

In some cases, more compact slots even allow for reducing the size of the opening made in the window while maintaining the expected performance.

 

The right reflex on site: check before machining

Before any machining operation, it is essential to check:

• The exact model of the air inlet
• The associated slot dimensions
• The manufacturer’s installation recommendations

This simple check helps avoid cutting errors, ensures installation compliance, and guarantees the product’s expected performance.

Because a high-performing product also starts with a compliant installation.

Spring is often associated with a thorough clean-up: washing windows, dusting, tidying up, airing out rooms… Yet one essential part of the home is still too often overlooked: the ventilation system.

Air inlets and exhaust vents nevertheless play a key role in Indoor Air Quality and occupant comfort. Like any equipment used daily, they require regular maintenance to retain their full efficiency.

Spring cleaning is therefore the perfect opportunity to adopt the right maintenance habits.

Why maintain your ventilation system?

Over time, dust, particles, and impurities can accumulate on ventilation components. Without proper maintenance, this can affect air circulation and reduce system performance.

Regular cleaning helps to:

• Preserve Indoor Air Quality: by limiting the build-up of dust and impurities while ensuring efficient air renewal throughout the home.
• Maintain optimal airflow: clean equipment ensures proper air circulation and allows the system to operate under the intended conditions.
• Reduce discomfort caused by humidity: a properly maintained ventilation system helps remove moisture more effectively and reduces the feeling of stale or stuffy air.
• Ensure long-term equipment performance: regular maintenance helps preserve system efficiency and extend the lifespan of the equipment.

Which equipment is concerned?

Maintenance applies to all components involved in air renewal within the home, including:

• Self-regulating air inlets and extract vents
• Humidity-controlled air inlets and extract vents

Each piece of equipment requires specific maintenance actions to preserve its proper operation and long-term performance.

Best practices to remember

Air inlets

Annual maintenance of air inlets is recommended.

Maintenance steps:

1. Remove the cover
2. Clean the components with a damp cloth
3. Reassemble the unit correctly

Precautions to follow:

• Do not immerse components containing foam in water
• Do not disassemble the regulation systems
• Do not disassemble the flap or the humidity-controlled operating system
• Clean certain base units without removing them from the framework

These precautions help maintain the proper operation and performance of the equipment.

Extract vents

Extract vents require more regular maintenance, ideally twice a year.

Maintenance steps:

1. Remove the grille and the regulation module
2. Clean the various components
3. Rinse and then correctly reposition the components

Precautions to follow:

• Ensure that electrically connected vents are not live before any intervention
• Ensure correct positioning of flaps and actuators during reassembly to guarantee the proper functioning of the humidity-controlled system

Download our Maintenance Guide

To assist professionals and occupants with the maintenance of ventilation systems, we provide an illustrated practical guide dedicated to air inlets and extract vents.

You will find:

• Cleaning steps
• Recommended maintenance frequencies
• Precautions to observe
• Tips for long-term preservation of equipment performance

Take advantage of spring cleaning to adopt good habits and ensure the long-term care of your ventilation system.