Features of Aosun Recessed Air Curtain
- Discreet ceiling-mounted design with a slim and modern grille
- Creates a strong air barrier against dust, drafts, & insects
- Durable galvanized steel housing with anodized aluminum vanes
- Quiet centrifugal fans with efficient heating or air-only options
- Easy integration with wireless, LCD, or intelligent controls
Aosun | Trusted Recessed Air Curtain Supplier in China
Recessed air curtains are a discreet climate control solution. They are designed to be installed flush within a false ceiling, leaving only a slim and modern grille visible. Unlike surface-mounted units, recessed air curtains blend seamlessly into interiors. Due to that, they are ideal for upscale spaces such as restaurants, hotels, retail stores, hospitals, and office buildings. They create an invisible air barrier across entrances. So, they can effectively reduce insects, dust, drafts, fumes, and temperature loss. They can do this while ensuring energy savings and comfortable indoor air quality.
At Aosun, we manufacture recessed air curtains using high-duty components. They are manufactured from corrosion-resistant galvanized steel with anodized aluminum vanes. These air curtains are also low-noise, durable, and energy efficient. They come in hot water, electric, or air-only versions. Their power ratings range from 3kW to 6kW. They are also suitable for ceiling heights up to 4 meters. Additionally, they feature hinged linear grilles for quick servicing, self-supporting frames for easy installation, and automatic thermal overload protection.
Our recessed air curtains are equipped with advanced centrifugal fans and external rotor motors. So, they can provide stable airflow with minimal noise. Speed and heating levels can be managed through LCD wall panels, wireless controllers, or intelligent programmable systems.
Whether for commercial buildings or residential applications, Aosun recessed air curtains can provide reliable climate separation, reduced energy costs, and a refined appearance. Contact us and get a quote!
Low sounds level. Copper motor. Optimized airflow technology and higher in corrosion proof.
Casing construction made of galvanized steel. with external rotor motor, 5 speed controller. Low consumption efficiency fan.
Produces high speed air current. Will eliminate summer heat, winter cold, dust, insects, and odors.
Easier installation and easy cleaning. It has aesthetically pleasing finish. Made from aluminum, steel, and plastic materials.
Can be wall and window mounting. ISO Certified. We can customized control to switch or remote.
Easy clean and fireproof. Ready to install recessed in false ceiling. It has white frame, other colors available upon request.
Simple design to accomodate variety of heaters. Full steel cabinet and stainless steel air inlet covers.
We offer 36Inch, 48Inch, 60Inch size of Recessed Air Curtain. 220v Supplied power. Rust-proof and easy to clean.
Types of Recessed Air Curtain
Aosun recessed air curtains can be divided into different types according to different features. The following will introduce different recessed air curtains from two aspects of the heat source and the fan.
Heat Source Classification
Hydrothermal Type
Hydrothermal recessed air curtains use hot water or steam to heat the air, thus exhausting hot air. Hydrothermal recessed air curtains can provide warm air for entrances and exits. It can block the intrusion of cold air while improving the indoor temperature.
Hydrothermal recessed air curtains do not require electricity for heating, which can save you electricity. However, it requires a continuous flow of heat medium to provide a heat source, so the requirements for the installation environment and process are relatively high.
If you are in a cold area with central air conditioning, it is highly recommended to use it with a Hydrothermal recessed air curtain.
Electric Type
As the name suggests, the electric type is a recessed air curtain that relies on electricity to heat the air. The heating element uses a PTC ceramic heater or other thermistor.
After the machine is turned on, current flows through the thermistor, raising its temperature, which in turn heats the air inside. This method is highly efficient, with fast heating and a large amount of hot air.
Most importantly, the surface of the PTC ceramic heater is non-electrical and has overheat protection, which can prevent the air curtain from burning out due to excessive current.
Natural Wind Type
Natural wind curtains are popular in the market due to their simple structure and mature manufacturing process. Unobstructed by heaters at the air outlet, natural wind curtains provide stronger and more powerful air. This feature allows them to be installed in high hallways.
Because natural wind-type recessed air curtains don’t heat the air and rely entirely on natural wind, they’re only suitable for use in high-temperature areas. If your recessed air curtains simply prevent cold air from escaping, then natural wind-type air curtains are a good option.
Fan Type Classification
Axial Flow Fan
The ventilation efficiency of the axial flow fan is high. It uses blade rotation to push the air flow along the axis. The air enters the air curtain along the axial direction and also flows out along the axial direction, thus realizing the exchange of indoor and outdoor air.
The structure of the axial flow fan is simple, and the cost is competitive. While it can offer a high and concentrated volume of air. The recessed air curtains with axial flow fan are suitable for installation in low-height and large-space places such as large shopping malls and factories.
Centrifugal Fan
Recessed air curtains with centrifugal fans are also a popular option. Centrifugal fans use high-speed rotating blades to create centrifugal force, which throws air toward the outer edges.
This powerful delivery method can increase air speed and pressure, while expanding the adjustable range of air pressure and air volume. Recessed air curtains with centrifugal fans are widely used in modern architecture. They are suitable for separating the large isolation space.
If you need to install recessed air curtains in places that require strong ventilation capabilities, such as high-rise buildings or underground garages, then centrifugal air curtains are suitable for you.
Crossflow Fan
Crossflow fans combine the advantages of axial flow fans and centrifugal fans. The recessed air curtain with crossflow fans can achieve both sufficient air volume and high air pressure.
The airflow enters the fan perpendicular to the axis and is discharged through the blades in the opposite direction. This process allows for uniform distribution of the airflow over a large return plane.
Recessed air curtains paired with crossflow fans provide stable, low-noise airflow. In production lines, laboratories, and other locations, crossflow fans maintain a balanced temperature and humidity. If you’re considering air curtains for your workplace, crossflow fans can meet the high air quality requirements of various production and laboratory environments.
Advantages of Recessed Air Curtain
Discreet Design
Compared to standard air curtains, recessed air curtains offer the most aesthetically pleasing installation. Typically, recessed air curtains are installed within suspended ceilings or walls. This saves space while also creating a visually appealing effect. Recessed air curtains are ideal for installation in the foyers of upscale establishments.
Durable
Aosun recessed air curtains are constructed entirely of high-performance materials. The housing is constructed of corrosion-resistant galvanized steel, while the fan blades are constructed of anodized aluminum. The DC inverter motor conserves energy while extending its lifespan. In addition, the hinged linear grille and filter design can prevent the growth of bacteria and extend the service life.
High-Efficiency Operation
The motor of the recessed air curtain uses a high-precision ABS wind wheel to avoid the noise frequency area through uneven crossflow. Strong wind force (≥6m/s) and air volume (800～3500m³/h) can form a strong air barrier to effectively isolate indoor and outdoor air, while preventing dust and insects.
The DC inverter motor, combined with a centrifugal turbine and a scientific air duct design, is not only energy-efficient but also extremely quiet (≤45dB). This level of noise is almost as mild as the sound of air conditioning. At the same time, the recessed air curtain also has the function of automatic thermal overload protection to prevent current overload.
Applications of Recessed Air CurtainWhat is the Recessed Air Curtain?
An air curtain is a fan-driven system to separate the indoor and outdoor air. The recessed air curtain is a unique air curtain design that is installed flush with the ceiling, with only the grille exposed. The recessed air curtain can provide you with great performance while balancing interior decoration.
Commercial Buildings
Recessed air curtains are widely used in commercial buildings. They improve indoor air quality while reducing energy consumption in air conditioning systems, creating a comfortable working and shopping environment.
Typical applications include installing recessed air curtains in supermarket fresh produce areas to prevent cold air from escaping and spoiling produce. Installing recessed air curtains between the kitchen and dining area in restaurants can prevent fumes and odors from escaping and disrupting the dining environment.
Medical Buildings
Medical facilities have high requirements for air freshness. Recessed air curtains ensure clean, dust-free air in operating rooms and patient rooms. Furthermore, DC motor-driven fans are extremely quiet, meeting the requirements for a quiet medical environment.
Industrial buildings
During production and processing in industrial buildings, harmful gases and dust are inevitably generated. Recessed air curtains can improve indoor comfort in industrial buildings by removing harmful gases and dust, protecting worker health while improving productivity.
Many people may believe that the higher the wind speed, the better the air curtain’s insulation effect. This is incorrect. Excessively high wind speeds, if not enough distance for air to circulate, can cause the air to scatter after hitting the ground. This can actually reduce the air curtain’s ability to separate indoor and outdoor air.
A suitable recessed air curtain paired with the right windshield maximizes its separation effectiveness. If you’re unsure of the appropriate recessed air curtain and wind speed for your location, please contact Aosun. We will provide you with the most professional air curtain solutions.
The wind speed and heating level of the recessed fan can be remotely controlled via an LCD panel or wireless controller. Some recessed air curtains in cold storage or warehouses are equipped with a dedicated control box. Please contact Aosun for specific models.
The maintenance of recessed air curtains is very simple. Usually, you only need to clean the air inlet and outlet regularly and check the operation of the air curtain to ensure it is running normally. Aosun can provide you with a detailed maintenance guide to help you keep your recessed air curtain in the best condition.
Recessed air curtain is a device used to block the flow of air, dust, odors, or insects between two connected spaces. It is typically installed above building entrances or at the boundary between areas with significant temperature differences, forming an “invisible barrier” by blowing a high-speed downward airflow, thus preventing the exchange of air and pollutants.
Unlike insecticides or baits, commercial recessed air curtains function by preventing insects from entering before they do, rather than dealing with them after they have entered. By sealing off all possible points of insect intrusion, air curtains can effectively provide protection.
Recessed air curtain uses a built-in fan to create a continuous, even downward airflow in front of doors, windows, or openings. This high-speed airflow forms a stable “air wall” at the opening, effectively separating indoor and outdoor air.
When cold outdoor air attempts to enter, it is redirected or blocked by this air barrier, significantly reducing the amount of cold air seeping into the room. This not only maintains a stable indoor temperature but also reduces the load on the heating system and minimizes energy loss.
Yes, recessed air curtains can reduce the amount of odors entering a room to some extent.
An air curtain creates an “air barrier” at doorways or passageways using a high-speed downward airflow, blocking the natural flow of outdoor air into the room. When there are smells of smoke, cooking fumes, garbage, or other unpleasant odors outside, this airflow barrier slows down or even prevents these odors from seeping in, resulting in cleaner indoor air and a more stable odor.
However, it’s important to note that air curtains primarily “reduce” the spread of odors, not completely eliminate them. If the concentration of external odors is very high or the air curtain’s airflow speed is insufficient, its effectiveness may be compromised.
Choosing the right recessed air curtain mainly depends on the following key factors.
Door width:The air curtain length should match or slightly exceed the width of the doorway to ensure full coverage.
Installation height:The installation height affects the required air velocity,the higher entrances need the stronger airflow to create an effective air barrier.
Application environment:Different environments require different recessed air curtains.Factors such as building type,door usage frequency,and outdoor conditions can influence the required airflow and performance,further influencing the selection of recessed air curtain.
There are many others factors will affect the choice,if you want know more,contact us.
Recessed air curtains will form an air barrier at the entrance to prevent conditioned air escaping and limit the amount of hot or cold outside air entering the building.
On the one hand,it can reduce energy consumption from frequent door opening.This helps maintain a stable indoor temperature and reduces the load on the HVAC system.On the other hand,air barriers can significantly reduce the burden on indoor air treatment by blocking the entry of humidity and dust.
Generally speaking,the lifespan of a recessed air curtain is generally between 5 and 10 years.However,if using properly,it may have a longer lifespan.There are some factors you can pay attention to.
Motor Quality:The motor is the key component affecting lifespan.If you use high-quality motors and fan blades can reduce wear and significantly extend service life.
Operating Hours:The longer the operating time,the faster the parts wear out.Therefore,in some places with high traffic,such as supermarkets and hospitals,the product’s lifespan will be shorter.
Installation Environment:Environmental factors,such as humidity,dust,and temperature,also will affect lifespan.If you install recessed air curtain in harsh environment,it requires better protection.And regular maintenance can extend the equipment’s lifespan.
