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DAMPA Clip-In Custom Tile installed in the Panum Institute
DAMPA Clip-In Tile installed in Aabenraa Hospital

Diffuse Ventilation – Fresh Air Without Draught and Noise

With diffuse ventilation you can create a good indoor climate, where fresh air is added without draughts and noise. But how does it work?

Diffuse ventilation serves the same purpose as regular ventilation – to supply a room with fresh air. Fresh air can be supplied through natural means such as ventilation, vents, air ducts, and mechanical ventilation using a dedicated fan.

With diffuse ventilation, air is blown over the ceiling, creating pressure over the ceiling, after which the air seeps down through the surface, thereby supplying fresh air to the room.

Why is Ventilation Important?

Regardless of the type of ventilation used, fresh air is crucial in any space. This is because, on average, we spend up to 90% of our time indoors, making good indoor air quality important for our health.

Indoor air quality is defined as the environmental factors in a room that affect our well-being, including air, humidity, temperature, and noise.

If the indoor environment is not optimal, it exposes employees, students, and others to conditions that lead to symptoms such as fatigue, headaches, difficulty concentrating and similar symptoms.

A bad indoor environment can be caused by drafts from poor ventilation conditions and poor air and temperature conditions due to fluctuating temperatures.

As an employer or school administrator, it is your responsibility to ensure the best conditions for employees and students. Failure to do so can decrease productivity and quality, while increasing absenteeism among the respective groups. This is suboptimal for anyone, regardless of their profession or role.

How to Create a Good Indoor Climate with Diffuse Ventilation

When aiming to optimize indoor climate, there are several things to focus on. DAMPA recommends an increased focus on the following three factors in a room:

  • Air exchange
  • Temperature control
  • Noise regulation

Integrating DAMPA ceilings with diffuse ventilation is easy and beneficial for all three mentioned factors.

Air Exchange

With diffuse ventilation, air is evenly distributed over the entire surface, ensuring a consistently comfortable air quality in the room. At the same time, the air is distributed throughout the room rather than concentrated in one place as with point ventilation. Thus, air quality then does not become a barrier for one to thrive or concentrate in the room.

Temperature Control

Diffuse ventilation avoids draft discomfort from open windows and offers an easier method for regulating room temperature.

Avoid situations where windows are opened and closed, causing both draft discomfort and temperature issues for individuals in the room. This mechanical ventilation gives you full control over ventilation according to your needs.

By combining diffuse ventilation with our DAMPA® Climate Ceiling, we can create an even better indoor climate, as the climate ceiling regulates the temperature for each individual in the room.

Noise Regulation

Low noise levels are crucial for thriving in a room.

People in the room and a ventilation system both contribute to noise generation. A typical ventilation system is characterized by heavy ductwork and high noise levels. In contrast, diffuse ventilation features a low noise level and reduces energy consumption by eliminating extensive ductwork, thereby reducing required air pressure.

In addition to this, our perforated acoustic ceilings absorb sound in the room and reduce reverberation time, creating a good indoor climate through acoustics.

Combining diffuse ventilation and an acoustic ceiling is easy since the air effortlessly seeps through the dust-free acoustic filter. Thus, combining diffuse ventilation and acoustics doesn’t incur extra costs, as the ceiling, regardless of ventilation type, maintains the same good acoustic effect.

More Benefits Beyond Indoor Climate

In addition to improving indoor climate, diffuse ventilation also has a positive impact on the project’s total economy.

When using diffuse ventilation as a ventilation system, it is possible to reduce the building height due to the absence of ventilation ducts. Furthermore, the solution has low air pressure, resulting in lower energy consumption. Installation and operating costs are also experienced to be lower for those, who is using diffuse ventilation.

Combining the lower cost with the positive impact a good indoor environment such as the reduced absenteeism and the increased efficiency, diffuse ventilation is in many ways an exceptionally sensible investment both for employees’ working conditions and the company’s bottom line.


  • Diffuse ventilation supplies a room with fresh air through the ceiling surface.
  • Poor indoor climate leads to fatigue, headaches, difficulty concentrating, and more.
  • Poor indoor climate is based on poor air and temperature conditions as well as noise.
  • Diffuse ventilation provides consistently good air quality.
  • Diffuse ventilation minimizes draft discomfort and improves temperature control.
  • The noise level is minimal with diffuse ventilation due to lower air pressure.
  • Simple duct systems reduce building height and thus lower installation and operating costs.

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