
SONNIGER specializes in
Heaters condens, air curtains, air conditions and offers industrial and professional cooling and heating solutions.
About Sonniger
Sonniger, a global leader in the ventilation market—exporting to 55 countries worldwide and the No. 1 company in Europe for supplying modern, eco-friendly, optimally selected professional and industrial cooling and heating equipment—guarantees the perfect solution for you and your needs!



No.1 in Europe
Air Curtains
From Sonniger
Do you know what an air curtain is?
An air curtain is a device equipped with a fan that creates an invisible barrier of air above a doorway to effectively separate two different environments without restricting people’s access.
How do they work?
Air drawn in through the intake is pressurized by internal fans and expelled through the discharge outlet, forming an air jet directed toward the open doorway below. This invisible barrier protects your building or store from dust, insects, and some air particulates that might enter your space.
Heated air curtains incorporate a heating element—whether electric, hot/cold water, steam, or similar—to condition the discharged air. This prevents occupants from feeling a draft of cold air as they pass through the doorway and also warms the volume of incoming air, enhancing overall comfort and energy efficiency.

Is an air curtain effective for our store?
Absolutely!
Every study and test has demonstrated that air curtains are highly effective in a retail environment. By selecting the appropriate air curtain and installing it correctly, you not only achieve significant energy savings but also ensure that your building’s entrances remain protected from external conditions and free of insects, odors, and other unwanted particulates.
What are the advantages of an air curtain for our business?
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Hygienic Atmosphere
Helps maintain a clean, healthy indoor environment. -
Pest and Insect Control
Prevents flies, mosquitoes and other insects from entering. -
Filtration of Airborne Contaminants
Blocks dust, gaseous pollutants and external odors. -
Increased Foot Traffic & Sales
The “open-door effect” attracts more passers-by into your store, boosting revenue. -
Enhanced Store Visibility
An unobstructed entrance acts like a window, inviting customers to look inside. -
Unhindered Accessibility
Enables easy access for people with mobility aids, strollers or wheelchairs. -
Optimized Entrance Space
Frees up usable floor area at doorways by eliminating the need for physical barriers. -
Improved Comfort for Customers & Staff
Eliminates drafts and temperature fluctuations at the entrance. -
Energy Savings
Reduces thermal losses from heated or cooled zones, lowering HVAC load (kW) and operating costs. -
Enhanced Safety
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Minimizes condensation and ice buildup in cold environments.
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Ensures unimpeded emergency egress during fires or other crises.
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Can serve as a smoke barrier in specialized fire-protection applications.
For all these benefits, choosing the right air curtain is absolutely essential—leave that to Sonniger!
Professional and industrial air curtains


NEW PLUG&PLAY - Guard ONE
We’re proud to introduce Sonniger’s new professional-grade air curtain : GUARD ONE!
Built on the latest global market innovations, GUARD ONE delivers both reliability and top-tier performance.
Its whisper-quiet operation ensures an exceptionally pleasant environment for both customers and staff.
GUARD ONE is a true Plug & Play device, featuring an integrated control system—and, if you wish, it can be paired with an external control panel.
What’s more, its energy-efficient design not only enhances comfort but also helps you cut down on your energy bill!
And of course, it’s available in sleek white to blend seamlessly into any professional setting—whether it’s an office, restaurant, or retail space—and is available for immediate delivery!
SONNIGER Preference Worldwide




See the technical specifications and learn more about the products below:


Industrial Air Curtains
GUARD PRO series is engineered for industrial use, designed to minimize thermal losses through a building’s main entrance. Its exceptionally efficient fans and superior construction quality allow for installations spanning up to 7.5 meters of effective coverage.


Standard Air Curtain
New GUARD air curtains combine modern design with high performance, while offering a wide range of accessories. GUARD air curtains feature technological excellence and reliability.
SONNIGER SA implements ISO 9001 and ISO 14001 standards.
Environmental stewardship and the quality of our management and production processes are our top priorities.
SONNIGER’s Quality Management System has been certified by TÜV SÜD in accordance with ISO 9001 and ISO 14001 standards.
We stand ready to address ever-growing quality challenges to ensure the best possible service for our partners.
SONNIGER SA became a member of EUROVENT in October 2023!
EUROVENT is the European Association for Indoor Climate, Process Cooling and Refrigeration Technologies, whose members include the leading European manufacturers in the HVAC&R industry. SONNIGER SA will participate actively in the Air Heaters and Air Curtains Product Group (PG-CUR), contributing to the development of market standards—especially in defining common rules for technical data presentation—in the most precise, reliable, and laboratory-verified manner. SONNIGER’s involvement in EUROVENT further strengthens our reputation as a trustworthy supplier.
Principles and advantages of using GUARD air curtains
Energy saving is more relevant than ever today.

MARLEY specializes inVentilation Systems
Marley products are a benchmark in ventilation systems
Breathe easily without worrying about unpleasant odors, humidity, or mold: Marley’s ventilation systems are the perfect choice.
Pay attention to the color-coding of each Marley product line—it will guide you to your ideal indoor climate.


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Ventilation zone: Clean air passes through ventilation openings into every room without noise.
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Overflow zone: Clean air is distributed evenly by passing through door grille into adjoining rooms.
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Extraction zone: Stale, unrenewed air is expelled outside—e.g. via kitchen hood.
Fans
Clean air is essential in any home. In rooms prone to moisture—such as bathrooms and WCs—regular ventilation is vital: it not only supplies fresh air but also protects your home’s structure.
High humidity often follows a shower. Moisture settles on cold walls, leading to mold growth. That’s why a reliable ventilation and exhaust system is especially critical in interior bathrooms without windows. Controlled ventilation saves precious energy while ensuring consistent air exchange. Marley’s Menv 180 and Menv 180 Plus series deliver exactly the right ventilation every home needs.
Save energy and money while breathing clean indoor air, free of unpleasant odors and health-threatening microorganisms such as mold and moisture, by choosing Marley ventilation systems. Marley operates production plants in Germany and Hungary and is a member of global ALIAXIS group.

Ventilation systems with heat recovery
Member of global group ALIAXIS.
Marley products have maintained reliability for over 50 years in construction and renovation sectors, whether commercial or residential. Quality, functionality and smart design have established Marley as one of leading brands.
Continuous quality controls and certification according to ISO 9001 ensure quality and warranty of Marley products. Marley operates production plants in Germany and Hungary and is part of ALIAXIS group.
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