Key Features of Our Window Ventilation Fan
- Supports long-term stable operation with a high-quality motor design and optional overload and overheat protection
- Optimizing the impeller and motor structure helps effectively reduce noise
- Available in multiple sizes to match different window dimensions andventilation needs
- Durablehousing materials offer good resistance to corrosion and daily wear and to extend service life
- Prepared for multi-market compliance and certification requirements, such as CE and RoHS
- Compact and practical structure allows facilitates cleaning and routine maintenance
Window Ventilation Fan Manufacturing Capability
In ventilation scenarios where wall or ceiling mounting is not feasible, window ventilation fans are a practical option for achieving effective airflow. Aosun’s window ventilation fans can be securely installed on windows without the need for ducts or external grilles. They can efficiently exhaust air and effectively remove indoor odors and moisture.
As a professional window exhaust fan manufacturer, Aosun has long focused on the research, development, and production of window-mounted ventilation products. By addressing diverse window types, installation conditions, and usage scenarios, we have continuously refined the structural design and product configurations of window-mounted exhaust fans, establishing a mature and stable product line. At the same time, Aosun has a mature and stable production system and strict quality control processes, enabling us to provide flexible production and supporting solutions according to the needs of different projects.
Available Window Ventilation Fan Models

It balances ventilation and aesthetics, making it suitable for indoor window applications.

The stainless steel casing design is suitable for applications requiring corrosion resistance and long service life.

The louvered axial flow structure combines protection and ventilation.

The circular air outlet design matches specific window opening conditions.

With its glass panel design and low-noise operation, it is suitable for quiet indoor environments.

Wood louvers offer a design that balances ventilation and visual appeal.
OEM / ODM Customization for Window Ventilation Fans
We support OEM/ODM customization and offer bulk supply services tailored to project requirements.

We can customize the brand’s logo, packaging design, and branding solutions to meet your brand and project needs.This option is commonly used for private label products or project-based supply.

Aosun supports customized casing materials including plastic, stainless steel, or glass shells to meet project requirements. We also offer customized case colors with multiple options to choose from.

For the two core components of motor and blades, we support customizing them based on your ventilation needs, operating conditions, and project requirements. You can choose different types and power ratings of motors according to your operational needs to meet your project or customer requirements in terms of ventilation efficiency, noise control, and operational stability. As for the blade, we provide multiple material options and optimize blade structures accordingly to balance airflow, noise and service life.

Multiple voltage and frequency configurations are supported to comply with different regional electrical standards. This helps ensure product compatibility across international markets.

We can customize exhaust fan specifications, performance parameters, and configuration plans according to specific project requirements, installation conditions, or application needs.
Hot-selling Window Ventilation Fan Models & Specifications
The following are the relevant parameters of common hot-selling ventilation fan models. The parameters can be used as a reference for selection, and the actual configuration can be adjusted according to project requirements.
- WW-E
- WW-QG
| Model | Size (mm) | Voltage (V) | Frequency (Hz) | Current(Amps) | Power(W) | Rotated Speed (rpm) | Airflow(m³/h) | Air Pressure(Pa) | Noise dB(A) |
| WW-100E | 100 | 220-240 | 50 | 0.072 | 12 | 2400 | 95 | 36 | 34 |
| WW-125E | 125 | 220-240 | 50 | 0.11 | 16 | 2200 | 150 | 45 | 34 |
| WW-150E | 150 | 220-240 | 50 | 0.138 | 18 | 2000 | 250 | 60 | 35 |
Model Selection Tips
- Before selecting a model, it is recommended to confirm the available installation dimensions for the window to ensure that the exhaust fan specifications match the actual installation conditions.
- While ensuring basic ventilation needs are met, we recommend that you consider the balance between airflow and operating noise.
- Different countries and regions have different standards in terms of voltage, frequency and related specifications, so electrical configurations need to be confirmed in advance when selecting equipment.
- For project-based selection or installation questions, feel free to contact us.

| Model | Inches | Rated Voltage (V) | Input (W) | Air-flow (m³/h) | Noise (dB) | Install Space (mm) | B (mm) | C (mm) | D (mm) |
| WW-100QG | 4″ | AC220-240V, 50Hz | 10 | 95/180 | 30 | 105 | 52 | 86 | 100 |
| WW-125QG | 5″ | AC220-240V, 50Hz | 12 | 180 | 34 | 125 | 57 | 90 | 118 |
| WW-150QG | 6″ | AC220-240V, 50Hz | 12/25 | 230/380 | 35 | 155 | 62 | 114 | 147 |
Installation & Window Compatibility of Window Ventilation Fan
The window-mounted ventilation fan adopts a structural design centered on window installation. It can accommodate various window types, though the actual installation depends on the window’s structure, openings , and sealing conditions.
Window Compatibility
Window exhaust fans are compatible with a variety of common window types, including fixed glass windows, sliding windows, and single or double-glazed windows. Depending on the structure and size of different windows, exhaust fans can be installed on the glass or window frame and secured with mounting panels to meet specific installation needs. In practical applications, the need for mounting panels and the specific fixing method mainly depend on the window structure, opening conditions, and sealing requirements.
Installation Considerations
It is worth noting that the actual installation will be affected by the window material, thickness, and site conditions. For example, if the window frame is too narrow, the window may not be able to be securely fixed. This situation requires further evaluation to determine whether a window exhaust fan can be installed. Additionally, you need to have a power source available around the window to ensure that the exhaust fan can be powered on and used properly after installation.
Brief installation steps
- Measure the window opening size.
- Install and fix the panel or frame.
- Fix the exhaust fan body.
- Perform basic sealing and connect the power supply.

Tips: For projects with special window types or renovations, we recommend contacting us before purchasing so that we can provide more suitable installation advice or product matching solutions.
Applications of Window Ventilation Fans
Window ventilation fans are mainly used in spaces that require localized ventilation through windows. Without modifying existing wall structures, they are suitable for ventilation scenarios that require installation flexibility and later addition.

Bathroom Window Ventilation
Bathrooms are prone to moisture and odors during daily use. For bathrooms where it is not possible to install ceiling or wall-mounted exhaust fans, window exhaust fans can be installed at the window location to achieve direct ventilation. This effectively reduces moisture buildup and odor residue.
Kitchen Auxiliary Ventilation
Window-mounted ventilation fans can be used in kitchens as auxiliary ventilation. In situations where traditional wall-mounted exhaust systems cannot be installed, this can assist the range hood in removing cooking fumes. Besides, exhaust fans can also quickly eliminate odors after cooking, improve air circulation in the kitchen, and improve air circulation.
Renovation Projects
For renovation and refurbishment projects of old houses, it is usually inconvenient to adjust the original wall or ceiling structure. The window ventilation fan can be installed later, enabling rapid ventilation and air exchange without affecting the original structure.
Maintenance & Service Life of Window Ventilation Fans
Window ventilation fans have a relatively simple structure and require basic daily maintenance, making them suitable for long-term ventilation applications.

With proper installation and normal use, the ventilation fan can maintain stable operation. Regular routine maintenance helps ensure that it meets long-term operating requirements. This also helps extend the lifespan of the equipment.
The maintenance frequency of exhaust fans is usually related to factors such as operating frequency and usage environment. In typical residential or light commercial environments, maintenance requirements are relatively low. However, in environments with high humidity or frequent use, such as kitchens, maintenance requirements may be higher. In such cases, more frequent inspection and cleaning are recommended.
Pre-maintenance Notes:Before maintaining the exhaust fan, we recommend that you ensure the power supply is completely disconnected. Routine maintenance mainly involves wiping the surface of the unit and removing dust from the fan blades. It also includes checking the stability of the installation and the condition of the wiring. No complex disassembly is required to ensure continuous and reliable operation of the equipment.
Not all window ventilation fans require a mounting panel. This mainly depends on the window structure, fan size, and sealing requirements. For some window types, the exhaust fan can be directly fixed to the glass or window frame. For panelless installations, it is essential to ensure that the gaps are sealed, preventing air leakage and reducing ventilation efficiency. Mounting panels help improve stability and overall sealing performance, commonly used for sliding windows or situations where sizes do not match.
We recommend reserving adequate maintenance space when installing window ventilation fans to facilitate future inspection and maintenance. Without reserved space, cleaning becomes more difficult, and dust and oil tend to accumulate over time, affecting the exhaust fan’s efficiency and lifespan. In general, the reserved maintenance space is relatively small and will not affect normal use. Planning the space in advance before installation can reduce later maintenance costs.
The window-mounted ventilation fan generally meets the ventilation requirements of normal humidity environments, but is not recommended for long-term use in high humidity or oily environments. In high-humidity environments, it is recommended to choose a durable, moisture-proof model. However, in oily environments, we do not recommend using ventilation fans as the only ventilation device. They are more suitable as an auxiliary or supplementary ventilation solution. The actual applicability should be evaluated in conjunction with the usage scenario and ventilation intensity requirements.
The available installation size of the window will affect the range of optional exhaust fan specifications. We recommend that you choose a ventilation fan with an opening size that matches the window structure. Then, you can ensure stable installation and guarantee the performance of the exhaust fan. Smaller windows are suitable for compact exhaust fans, avoiding installation limitations. Larger windows can support larger exhaust fan models with higher airflow. Additionally, when selecting a model, we also need to consider the window size and actual ventilation needs, not just the air volume parameters of the exhaust fan.
The noise level of typical window ventilation fans is generally designed to meet indoor use requirements. Actual noise performance varies depending on the model, airflow, and installation conditions. As an exhaust solution, the fan’s noise level is closely related to air volume, motor type, and installation stability. Proper installation helps reduce resonance and additional noise.
Most window ventilation fans support long-term continuous ventilation, mainly depending on the motor design and product specifications. In practical applications, ensure the window exhaust fan is installed correctly and has good heat dissipation conditions to guarantee its stable operation. If this window exhaust fan is intended for engineering or other long-term operation scenarios, it is recommended to confirm the corresponding operating parameters and usage conditions during the selection phase.
Window ventilation fans cannot replace traditional range hoods, they can only be used as auxiliary ventilation devices. Window ventilation fans can only remove some of the oil fumes and steam, and it is difficult to deal with the spread of oil fumes. For scenarios involving heavy cooking fumes and frequent cooking, traditional range hoods have better smoke extraction capabilities. The window-mounted exhaust fan used in conjunction with a range hood can effectively improve ventilation efficiency.
The actual difference in performance depends more on installation conditions and airflow path than on the mounting method alone. Wall-mounted exhaust fans are typically suitable for fixed installations where the exhaust path is shorter and more stable. However, window exhaust fans are more suitable for window installation or later ventilation needs. Under the same airflow conditions, window exhaust fans can meet the basic ventilation needs of a local space. For large spaces or centralized ventilation systems, wall-mounted exhaust fans are generally more advantageous.
Generally speaking, proper installation of window ventilation fans and proper sealing will not significantly affect the airtightness and waterproofness of windows. During installation, sealing work is typically performed in conjunction with mounting panels or fixed frames. For projects with unique window designs or stringent waterproofing requirements, we recommend contacting us for professional evaluation.
Whether a window ventilation fan requires drilling for installation depends on the type of window. In most cases, it is necessary to reserve openings in windows or mounting panels to ensure proper ventilation. For sliding windows or windows with specific structures, drilling can be eliminated or modifications to the original window structure can be reduced by installing panels. For no-drill installation solutions, sealing and stability vary depending on window structure and installation method. For high-volume exhaust fans, we recommend that you drill holes to reinforce them and ensure stable and reliable operation.




