Indoor air

ENS makes it possible to clean the air inside homes, offices, schools, hotels, cafés and restaurants. Our systems clean the indoor air 24/7 and thus ensure a healthy living and working environment.

ENS Clean Air

People spend about 90% of their lives inside buildings. Hence buildings’ indoor air quality is an important indicator for a healthy ambiance, where good ventilation and fresh air are critical. In practice, fresh air supply is controlled by temperature, humidity and CO2 levels. However, the supplied air contains fine particles, allergens and volatile organic compounds, failing to meet optimum air quality standards. In addition, many materials and different devices present inside the buildings release harmful substances.

With ENS’s technology living, working, studying, training, socializing and other human activities in a healthy indoor climate are possible. ENS reduces the concentration levels of harmful substances inside your building, achieving a healthy indoor air. Our technology can be integrated into existing central ventilation and HVAC systems from commercial centers to residential buildings or offices, resulting in the highest energy efficiency level available in the market with the lowest maintenance cost. ENS’s technology can also be used for local, high-quality cleaning when circumstances require it.

Air purification at home

For family homes’ indoor air quality, ENS developed the Merlin. A stylish wall mounted device that protects your family members at home main chambers, such as living rooms, bedrooms or kitchens. The Merlin unit purifies air by removing harmful fine and ultrafine dust. All dust captured inside the Merlin is transformed into coarse dust, blocking its original airborne feature and capacity to be inhaled. Moreover, the Merlin’s simple maintenance, wiping its internal surfaces with a dry cloth, ensures optimum cleaning efficiency.

Clean air is healthy for everyone. However, in some situations the level of air quality must meet higher requirements, for example when people are suffering from allergies or respiratory conditions such as asthma or COPD. In these cases, the Merlin is best suited. This system reduces the level of airborne harmful particles such as fine dust, allergens and pathogens to almost zero. So you can breathe with confidence in your own home.

Mechanical air supply

Our technology covers a wide range of airflow capacities, bringing a solution for any building application. Any controlled ventilation system or any other form of mechanical air supply can benefit from our products. One example being the Aufero integration into the ducts of a HVAC installation. Thanks to its lack of pressure loss, no additional measures are needed to maintain the airflow. As a result ENS offers an energy efficient alternative to conventional filtering techniques that are used in schools, offices, homes, restaurants, cafés, and other catering establishments today.


Even in environments where extra protection is needed, ENS can help. Our systems can be used as a recirculation unit, meaning indoor air’s continuous cleaning. This treats indoor air several times, reducing the number of harmful particles, such as (ultra) fine dust, soot, pollen and other allergens, to virtually zero. For other heavily used areas, such as schools, museums and offices, systems are available with different sizes. Even in situations with a pollution source, such as a kitchen or a place where smoking is allowed, the ENS technology provides a solution to actively retrieve the air where the contamination is located.


Clean air and a good indoor climate are important conditions for an optimal living and recovery environment. Florence Nightingale’s discovery on the healing effect of fresh air has been of great significance for healthcare. But as modern society’s outdoor air is contaminated, opening a window will not improve indoor air quality automatically. ENS offers a solution. With our technology, it is possible to capture and eliminate fine and ultrafine airborne particles, such as allergens, viruses and bacteria.