Features of Aosun Overdoor Air Curtain
- Creates an invisible barrier to block odors, dust, insects, and outdoor air.
- Slim galvanized steel body with corrosion-resistant aluminum blades.
- High-efficiency EC or centrifugal motors with ≤55 dB(A) operation.
- Heated and non-heated options
- Multi-speed airflow (6–12 m/s) with remote or PIR sensor compatibility.
- Easy wall-mount installation & low-maintenance design.
- Certified safe for use in food service, retail, hospitals, and cleanrooms.
Professional Overdoor Air Curtain Supplier in China | Aosun
Overdoor air curtains are designed to be installed above entryways. They keep indoor environments comfortable while protecting against insects, dust, odors, and unwanted outdoor air. By generating a powerful yet invisible airflow barrier, they lower HVAC energy loss, maintain stable indoor temperatures, and improve hygiene in high-traffic areas such as offices, retail shops, restaurants, and hospitals. Unlike traditional door heaters, overdoor air curtains deliver year-round efficiency. They provide warm or ambient air streams depending on seasonal needs.
At Aosun, we offer overdoor air curtains that have advanced technology and durable construction. Our models come in heated and non-heated types. They use EC or centrifugal motors for energy savings of up to 50% and consistent airflow. These air curtains are designed with galvanized steel housing and corrosion-resistant aluminum blades. They have djustable multi-speed controls (3–5 speeds) that allow fine-tuning of airflow from 6–12 m/s. Meanwhile, their noise levels remain as low as ≤55 dB(A) for quiet operation.
Every Aosun overdoor air curtain is designed for low maintenance, easy installation, and versatile use. With optional accessories such as PIR sensors, remote controls, and BMS integration, they match modern building requirements. Whether safeguarding climate control at a mall entrance, improving air quality in a cleanroom, or maintaining sanitation in kitchens, our overdoor air curtains bring performance and elegance.
Contact us for more details.
AOSUN’s overdoor cross flow thermal air curtain provides balanced airflow and heating efficiency for comfortable indoor environments.
Our cross flow fan air curtain delivers smooth, quiet airflow above doors to maintain clean and stable indoor air conditions.
AOSUN’s mounted air curtain fits neatly above doors, preventing dust, insects, and temperature loss with efficient airflow.
Our overdoor air curtain features a magnetic switch for automatic operation, improving convenience and energy savings.
AOSUN’s centrifugal overdoor fan offers strong airflow performance ideal for commercial and industrial entrances.
Our overdoor air curtain includes a thermal protector for safe operation and long-lasting performance in high-traffic areas.
AOSUN’s low-noise overdoor air curtains ensure quiet and efficient operation, suitable for offices and retail spaces.
Our indoor overdoor air curtain enhances air circulation and reduces energy loss while keeping indoor spaces comfortable.
What is a Quiet Air Curtain
Aosun’s quiet air curtain is a type of ventilation component that is installed above entryways. It is driven by an EC or centrifugal motor, forming a barrier according to high-speed airflow. The quiet air curtain is widely used to block dust, odors, and outdoor air, ensuring the comfort of the indoor environment. It can also be combined with various smart accessories, achieving automated operation. Compared to traditional door heaters, the quiet air curtain offers a higher efficiency solution.
Advantages of Quiet Air Curtain
Low Noise
Low noise level is the biggest advantage of the quiet air curtain, significantly improving the comfort of application spaces. Highly efficient motor and advanced technologies design control the noise below 55 dB(A), which is generated in the quiet air curtain operation process. If your project pursues silent working, the quiet air curtain is an ideal choice. On the other hand, the function of multiple-speed adjustment ensures stability of the airflow barrier, without adding any noise.
Save Energy
- Motor and Barrier: The quiet air curtain uses highly efficient EC or centrifugal motors, which save energy up to 50% than a traditional motor, reducing the electronic costs. At the same time, the strong airflow barrier efficiently avoids air exchange between the outdoor and indoor. This will reduce the handling process of the ventilation to outdoor air, decreasing the load of the HVAC system.
- Airflow Speed Control: The quiet air curtain achieves year-round efficiency, providing warm or ambient air streams based on actual environments. It also possesses adjustable multi-speed controls with 3–5 speeds, which allow tiny adjustments in the range of 6–12 m/s. It allows energy to be distributed on demand, avoiding energy consumption.
Protection Performance
Insects, dust, odors, and other harmful outdoor air can be blocked by the quiet air curtain, ensuring normal operation of the ventilation system. The housing of quiet air curtains is made of galvanized steel materials, offering good resistance performance on impact and corrosion to withstand harsh environments. Additionally, the aluminum blades provide double protection for the quiet air curtain. They can reduce rust issues caused by high humidity, extending the service life of the curtain.
Flexible Configuration
Aosun’s quiet air curtain offers heated and non-heated types and works year-round. You can adjust the parameters to make it adapt to different climates. The quiet air curtain provides you with various optional accessories such as PIR sensors, remote controls, and BMS integration. Its operation condition can be monitored in real time, achieving smart control and management.
How to Select a Quiet Air Curtain
When you select the quiet air curtain, you can consider it from various angles. The following are some suggestions for your reference:
Key Parameter
Before determining the type of quiet air curtains, you should first measure the key parameters of the required applications. These parameters include door opening dimensions (height, width, and angle), temperature difference, foot traffic, etc. Ensure the quiet air curtain you choose can meet the actual requirements. For example, if the difference between indoor and outdoor temperatures is high, then it requires a high airflow speed and pressure. While high foot traffic means the door may be frequently opened, it needs strong and stable airflow to maintain normal barriers.
Choose Type
Aosun’s quiet air curtain can be divided into heated and non-heated types; you can choose a suitable one based on the actual application environments. The heated type has functions both in isolation and in transferring warm air, forming a temperature transition zone in the entryway. It is widely used in high-end commercial settings. The non-heated type is mainly used to prevent external air, insects, and dust, and is suitable for supermarkets and industrial factories. Its initial investment and operation costs are generally lower than the heated type.
Consider Performance
When you select a suitable air curtain, its performance is also an important factor that needs to be considered. If your project has a strict demand for saving energy, the EC motor-driven air curtain can help you improve the energy efficiency. For some applications that are sensitive to noise, the quiet air curtain offers a 55dB or lower noise level. It also has various materials with high strength for your selection, ensuring the durability and stability of the quiet air curtain.
Brand and After-Sale Service
Choosing a famous brand typically ensures the quality and reliability of the air curtain; it usually offers a 2 or 3-year warranty. This can reduce failures and downtime caused by quality issues, decreasing maintenance costs. The good after-sales service also helps your device maintain a normal condition and achieve convenient maintenance.
It does not need too much maintenance. Galvanized steel housing and corrosion-resistant aluminum blades offer high performance, and are not easy to be damaged or rusted. The quiet air curtain just needs a cleanliness maintenance of the air vent filter and outlet grille, ensuring the air can flow smoothly.
Yes. The quiet air curtain can be integrated into the BMS, achieving remote management and control. You can monitor the operation condition and adjust the airflow speed or other settings, meeting the requirements of modern smart buildings.
Yes. If your project has a design of double doors, you can choose multiple air curtains to cover the entryways. You can also customize an air curtain with enough length to ensure efficiency. The quiet air curtain is also suitable for revolving doors. The revolving door itself can reduce air exchange, and the air curtain will enhance the effect.
No. The quiet air curtain cannot completely replace the air shower. The air shower is used in applications that need extreme cleanliness. It removes the particles from clothing in an enclosed space, according to the high-speed and all-around air shower. The air curtain cannot reach this effect.
