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Each year on September 7, the world observes the International Day of Clean Air for Blue Skies, a global call to action aimed at reducing air pollution and promoting sustainable practices. As outdoor air quality continues to decline in many parts of the world, the role of indoor environments—and particularly the HVAC systems that manage them—has never been more critical. This article explores the connection between clean air, sustainable ventilation, and the cutting-edge solutions offered by Goveco to support a healthier planet and better human health.

Why the international day of clean air for blue skies matters

The International Day of Clean Air for Blue Skies, endorsed by the United Nations General Assembly, serves to highlight the health, environmental, and economic consequences of air pollution. According to the WHO, air pollution is responsible for an estimated 7 million premature deaths each year. While much focus is placed on outdoor pollution sources, it's important to remember that **indoor air can be up to five times more polluted** than outdoor air, especially in poorly ventilated buildings.

This day encourages countries, companies, and individuals to take action. For HVAC professionals, contractors, and engineers, it is a reminder of the vital role our industry plays in the broader air quality ecosystem.

• Over 90% of the world's population breathes polluted air, making air quality a global issue.
• Indoor air pollution contributes to respiratory diseases, especially in urban environments.
• Efficient ventilation is one of the key solutions to mitigating the effects of indoor pollutants such as VOCs, mold spores, and fine particles.

The critical link between outdoor and indoor air quality

While outdoor pollution is often viewed as a separate challenge, it has a direct impact on indoor air quality. Polluted outdoor air enters buildings through open windows, doors, and even ventilation systems. Without proper filtration and controlled mechanical ventilation, contaminants such as PM2.5, ozone, and nitrogen dioxide accumulate inside living and working spaces.

This creates a paradox: to ventilate, we must open up to outdoor air, but doing so may introduce new pollutants. The solution lies in **controlled mechanical ventilation** paired with **advanced air filtration technologies**—both of which are areas where Goveco excels.

• Mechanical ventilation systems with heat recovery ensure a constant supply of fresh air without energy loss.
• HEPA and carbon filters can remove harmful particulates and gases from incoming air.
• Smart sensors adjust airflow based on CO₂ levels, humidity, and pollutant concentrations.

Goveco solutions that support cleaner air indoors

Goveco is a leading partner in innovative HVAC and ventilation technologies across Europe and beyond. The company’s commitment to sustainability aligns closely with the values of the International Day of Clean Air for Blue Skies. Here's how Goveco contributes to better indoor air quality:

1. MVHR systems (Mechanical Ventilation with Heat Recovery)

MVHR units such as those from Ubbink or Vent-Axia, distributed by Goveco, provide a continuous flow of fresh air while recovering heat from outgoing air. This improves energy efficiency and air quality simultaneously.

• Reduces heating costs by up to 30% while ensuring fresh air delivery.
• Maintains stable indoor humidity levels to prevent mold growth.
• Ideal for airtight buildings where natural ventilation is insufficient.

2. HEPA and active carbon filtration units

To remove ultrafine particles, allergens, and even viruses, Goveco offers a wide range of filter options that can be integrated into new or existing ventilation systems. These filters are crucial for environments such as schools, hospitals, and office spaces.

• Removes up to 99.97% of particles ≥ 0.3 microns.
• Captures harmful gases and VOCs with activated carbon layers.
• Improves health outcomes for asthma and allergy sufferers.

SFM - Media filter

Stationary unit with bag filter. Wall or ceiling mounted unit with disposable bag filter. Suitable for light industrial welding applications or as an additional final filter after an SFE unit.

SFE - Electrostatic filter

The SFE is an electrostatic filter for kitchen exhaust air. The SFE is designed to be installed in the extraction duct of a commercial kitchen downstream of the extraction hood. Depending on the levels of grease and smoke, several units can be joined to create double, triple or even quadruple pass systems.

SFC - Activated carbon filter

Stationary filter unit for in-duct mounting that mainly filters odours and gases by means of activated carbon filter cylinders with bayonet catch.

SCU-UV - System for UV disinfection of air

Specialized system that allows effective disinfection of air in ventilation ducts. UV disinfection is a method based on irradiation with ultraviolet light of wavelength 254 nm, very high energy levels. Depending on the radiation dose (J / cm2), UV light eliminates most pathogenic microorganisms from the supply air, without the formation of harmful chemical compounds and by-products..

FKO - Circular duct filter

For air filtration in ventilation and airconditioning systems. Galvanized steel filterbox with easy accessible top entry equipped with flat filter with galvanized mesh

3. Smart sensors and automation for better air management

Intelligent control systems, such as the Visonic air quality monitors distributed by Goveco, provide real-time feedback on air quality. These systems can trigger ventilation or filtration units automatically to maintain optimal conditions.

• Real-time monitoring of CO₂, PM2.5, humidity, and temperature.
• Automated control of ventilation based on thresholds to minimize energy waste.
• User-friendly interface for facility managers and homeowners alike.

AM7000 - Cubic air quality meter

This Cubic monitor / sensor indicates the current air quality in your area. The CO2 sensor NDIR is self-calibrating and of the highest quality. The Cubic provides direct insight into the level of: particulate matter (PM2.5), the CO2 level, the temperature and the humidity in the environment. Due to the compact dimensions of the Cubic, it is ideal to place on a table or desk so that it can be easily monitored. The display of the Cubic is medium-lit, so that it also perfectly shows the values ​​in the dark without completely illuminating the room.

AEPGOOB - Measuring station + Air straightener

The type AEPGOOB circular air flow measuring station is designed for the accurate measurement of air flow in air duct systems courtesy of the patented air flow sensor type Flo-Cross®.

AERGOOB - Rectangular measuring station with air straightener

The type AERGOOB rectangular air flow measuring station is designed for the accurate measurement of air flow in air duct systems courtesy of the patented air flow sensor type Flo-Cross®.

Conclusion: sustainable HVAC for a cleaner tomorrow

As we mark the International Day of Clean Air for Blue Skies, it's essential to reflect on how the built environment—and the systems that support it—can contribute to healthier living. HVAC professionals have a unique opportunity to lead this transformation by embracing **sustainable, high-efficiency ventilation solutions** that protect both people and the planet.

Goveco stands at the forefront of this mission, offering the technologies and expertise needed to create cleaner indoor spaces in every climate zone. By integrating MVHR systems, advanced filtration, and smart sensors, we can ensure that **indoor environments remain safe, healthy, and aligned with global sustainability goals**.

Let this day serve as both a reminder and a motivator: clean air is not a luxury—it's a right. And with the right HVAC technologies, it's a goal well within reach.