Key Features of Our Single Room HRV
- The single room HRV uses an advanced heat exchanger to efficiently recover heat from exhaust air during ventilation. This way efficiently reduces heating and cooling energy consumption while maintaining a stable indoor temperature.
- Balanced two-way ventilation continuously supplies fresh air and exhausting stale indoor air, improving indoor air quality.
- Use a low-noise EC motor to ensure stable airflow and quiet operation, suitable for quiet environments.
- Equipped with high-efficiency air filter effectively removes dust, particulate matter, ensuring clean and healthy indoor air.
- Optional smart modules such as humidity sensors or automatic ventilation controls allow the system to adjust airflow automatically, providing convenient and intelligent ventilation management.
- The compact structure of single room HRV makes the single room heat recovery ventilator ideal for installation in bedrooms, apartments, and small indoor spaces.
Single Room HRV Manufacturer in China
Aosun is a professional manufacturer specializing in the development and production of heat recovery ventilators, exhaust fans, and fresh air ventilation equipment. Our single room heat recovery ventilators are designed to provide efficient air exchange while reducing energy loss during ventilation. Equipped with an efficient heat exchange core, our single room HRVs can achieve heat recovery efficiency of up to 70–90%, helping reduce heating and cooling energy consumption. In addition, our single room HRV also features low-noise EC motors and a high-efficiency air filtration system, ensuring a constant supply of fresh air indoors.
With a compact structure and through-wall installation design, these single room HRV units are widely used in apartments, bedrooms, offices, and renovation projects. We also support flexible OEM and ODM services, allowing customization of product appearance, functions, voltage, and packaging to meet the requirements of different markets and projects.

Designed with a protective louver grille, this model helps prevent rain and debris from entering the ventilation system while ensuring stable airflow.

Featuring a modern round panel design, this unit blends easily into contemporary interiors while providing efficient fresh air ventilation.

A compact wall-mounted ventilation solution that delivers reliable heat recovery ventilation for individual rooms.

Designed with decorative front panels to match modern interior styles while maintaining efficient heat recovery ventilation performance.

Equipped with optional smart control features such as humidity sensors, timers, or remote operation for more convenient ventilation management.

A compact single room heat recovery ventilator featuring a tempered glass panel, offering efficient ventilation with a modern decorative design.
- Technical Specifications of Single Room HRV

| Electrical Connection | 110/230V 50/60Hz | |||
| Fan Speed | Night Mode | I | II | III |
| Air Flow (m³/h) | 15 | 30 | 45 | 60 |
| Elec. Power (W) | 0.9 | 1.1 | 2.8 | 5.9 |
| Sound Power | 21.3 | 25.7 | 39.8 | 47.9 |
| Sound Pressure @1m (dBA) | 10.3 | 14.7 | 28.8 | 36.9 |
| Sound Pressure @3m (dBA) | 0.8 | 5.1 | 19.2 | 27.3 |
| Thermal Efficiency | up to 90% | |||
| Fan Type | 2-way EC Controlled 12VDC Axial Fan | |||
| Sensor Type | Temperature and Humidity | |||
| Filter | 2x G3 (optional M5) | |||
| Protection Class | IPX4 | |||
| Operating Temp. | -25/+50℃ | |||
What Is a Single Room HRV?
Single room HRV is a ductless fresh air ventilation system specifically designed for standalone spaces. Unlike traditional exhaust fans that only exhaust indoor air, heat recovery ventilators introduce fresh air while exhausting stale indoor air, and recover heat from the exhaust gas through heat exchange technology. The recovered heat is transferred to the fresh air entering the room, ensuring ventilation while reducing energy loss.
The single room heat recovery ventilator are commonly used in bedroom, apartments, offices, and building renovation projects, especially in situations where centralized ventilation systems are difficult to install. With the compact design and through-wall installation, single room HRV delivers an efficient decentralized ventilation solution for modern buildings.
How a Single Room HRV Works

A single room HRV works by continuously exchanging indoor and outdoor air through a bidirectional heat exchange process. When the equipment is running, one side exhausts indoor stale air and pollutants to the outside, while the other side introduces filtered fresh air into the room. Thus maintaining a stable supply of fresh air. The internal heat exchange core can recover heat energy from the exhaust air and transfer it to the fresh air entering the room. This reduces heat loss while ventilating, making the indoor temperature more stable and thus reducing heating or cooling energy consumption.
Through this continuous fresh air introduction and heat recovery mechanism, single-room HRV can effectively improve indoor air quality and enhance the overall energy efficiency of the building. It provides a healthier and more comfortable indoor environment for bedrooms, apartments and office spaces.
Core Components of a Single Room HRV
The single room HRV consists of multiple core components that work together to achieve efficient ventilation and heat recovery. It can provide a lasting, comfortable fresh air experience for individual spaces.

Heat Exchange Core
The heat exchange core is the core component of the single room recovery ventilator. It can achieve heat transfer between exhaust air and fresh air during the ventilation process. As the energy recovery core of the system,we utilizes high-quality heat exchange materials to efficiently recover heat from exhaust air. It significantly reduces heating and cooling costs while preventing temperature fluctuations. This design suitable for diverse climates, it is the key to balancing energy savings with indoor comfort.
Ventilation Fan System
The internal ventilation fan system is the power source for airflow, ensuring smooth circulation of indoor and outdoor air within the equipment. Equipped with a low-noise, high-efficiency fan to achieve simultaneous two-way flow ventilation (introducing fresh air and expelling stale air). Thanks to advanced noise reduction technology, the equipment operates at extremely low noise levels, so as not to disturb rest or work. It can maintain low energy consumption even when running continuously for 24 hours, balancing ventilation efficiency and user experience.
Air Filtration System
The single room HRV has a built-in multi-stage air filtration system that filters dust and particulate matter before fresh air enters the room. The system is equipped with high-performance filter components, which can effectively filter dust, particulate matter and other impurities in outdoor air. This ensures that the fresh air into the room is clean and healthy, providing comprehensive protection for your respiratory safety. This design is ideal for residential and office settings where high air quality is required.
Control Module
The control module is used to manage equipment operation and can be equipped with intelligent functions such as humidity sensing or automatic ventilation. We offer a variety of intelligent control solutions that enable functions such as wind speed adjustment, timed start/stop, and remote control operation. This can make the single room heat recovery ventilator operation more flexible and convenient. You can customize various control methods according to your project needs, adapting to the project requirements of different customers.
Every core component has been carefully designed and rigorously tested to ensure that the equipment operates efficiently, quietly, and stably. This will not only significantly reduce your long-term energy costs, but also create a fresh and quiet indoor environment. This is also an important reason why Aosun products can be applied to various scenarios such as bedrooms, offices, and old house renovations, and have gained long-term recognition from overseas customers.
How to Install a Single Room HRV
The installation process of a single room HRV is simple and requires no complex duct system. We are committed to simplifying every step of the installation process. We use advanced through-wall installation methods to achieve the introduction of fresh air and the exhaust of air through the wall.

1.Determine Installation Location
Choose a suitable installation location on the exterior wall based on the spatial layout and ventilation requirements. You need to ensure that there are no obstructions around the installation and that air circulation is easy.
2.Drill Wall Opening
Drill holes in the exterior wall according to the installation dimensions of the single room HRV to reserve installation space for the ventilation ducts.
3.Install Wall Sleeve
Insert wall pipes or installation sleeves into the wall holes to form a stable airflow channel and provide support for equipment installation.
4.Install the Ventilation Unit
Install the heat recovery fan body into the wall duct and fix the equipment according to the instructions to ensure a secure installation.
5.Connect Power and Test
Connect the power supply and configure the control module or intelligent control system as needed. Start the equipment and check its operating status to ensure that ventilation, heat recovery, and all other functions are working properly. Once the equipment is confirmed to be operating stably and without abnormal noise, it can be put into daily use.
Due to its compact design and through-wall installation, the single room heat recovery ventilator is particularly suitable for apartments, renovation projects, and buildings without a central ventilation system.
Why Choose Our Single Room HRV
As an experienced ventilation equipment manufacturer, Aosun is committed to providing reliable heat recovery ventilators and professional ventilation solutions for global customers. With strong manufacturing capability, strict quality control, and flexible customization services, we help our partners complete their ventilation projects more efficiently.

Professional Ventilation Manufacturing Experience
Aosun specializes in the R&D and manufacturing of heat recovery ventilation systems, exhaust fans, and fresh air ventilation equipment. With deep industry expertise and a mature supply chain system, we are committed to providing reliable and energy-saving ventilation solutions to global clients.
Flexible OEM & ODM Services
We provide flexible OEM&ODM services, allowing customization of product appearance, functions, voltage, and certifications according to your project requirements. And the product logo, packaging, and other elements are fully customizable. If you have specific customization requirements or are unsure whether a feature can be customized, feel free to contact us. Our team will help you find the best suitable solution.
Stable Product Quality
Strict quality control ensures that every heat recovery ventilator and ventilation equipment unit delivers reliable performance and long service life. With our professional R&D team and modern production facilities, Aosun maintains stable product quality to support different residential and commercial ventilation projects.
Efficient Production Capacity
Our modern production lines and experienced manufacturing team ensure stable supply and efficient production capacity. This allows us to deliver ventilation systems and heat recovery ventilators on time, delivering a more worry-free and efficient cooperation experience.
Global Export Experience
Aosun ventilation products have been exported to many countries and regions worldwide. Our single room HRV and ventilation equipment are widely used in apartments, residential buildings, offices, and renovation projects. They are continuously create a healthy, comfortable, and energy-efficient indoor air environment for our users.
Professional Technical Support
Our engineering team supports your projects with professional solutions.We have a professional R&D team and modern production equipment. They can provide professional technical support and ventilation solutions for your project. Additionally, they assist with product selection, installation guidance, and offer customized solutions tailored to your specific ventilation system requirements.
Whether you need reliable heat recovery ventilator suppliers, professional OEM partners, or customized ventilation solutions, Aosun can provide comprehensive support for your project.
The main difference between a single room heat recovery ventilator and a regular exhaust fan lies in the airflow pattern and energy management. A single room HRV can simultaneously achieve the intake of external fresh air and the exhaust of internal polluted air. However, exhaust fans have a relatively simple function, only exhausting air and cannot introduce fresh air. They also tend to remove indoor heat. In addition, HRVs also feature heat recovery function, recovering heat while providing air exchange. Generally, HRVs are more energy-efficient than exhaust fans. If you want to breathe fresh air and maintain a stable indoor temperature, we recommend choosing a single room heat recovery ventilator.
The single room heat recovery ventilator can effectively improve the indoor humidity environment. reduce the indoor humidity. It reduces indoor humidity by continuously expelling damp and polluted air, thereby reducing mold growth at the source. While expelling humid air, single room HRV also introduces dry, clean outdoor air, making it ideal for damp spaces and basements. We recommend maintaining low gear operation for extended periods to ensure consistent dehumidification and ventilation performance.
No. The installation of single room heat recovery fan is relatively simple. The single room HRV adopts an advanced through-wall installation design, eliminating the need for you to build a complex duct system. Typically, the entire installation process takes only 30-60 minutes. Simply drill a ventilation hole in the selected exterior wall location, secure the main unit, and connect it to a power source. It can be put into use after all functions have been tested and found to be working properly. Whether renovating a new home or upgrading an existing one, we believe the single room HRV system is an ideal choice for efficient ventilation.
Single room heat recovery ventilators require simple daily maintenance. Generally, we recommend maintaining the single room HRV every 3-6 months. The specific timing depends on its usage environment. In environments with high dust levels, increased frequency of cleaning and maintenance is recommended. The primary maintenance include regular cleaning and filter replacement. Inspect the heat exchange core and ensure proper air circulation. Regular maintenance helps extend its maintain performance and service life.
Single room HRVs are ideal for use in winter and cold climate. They can recover heat while ventilating, maintaining a stable indoor temperature. Using HRV in winter provides both ventilation and keeps the room warm and comfortable, making it an ideal ventilation solution for cold periods.
Choosing the right single room heat recovery ventilator is crucial to ensuring efficient ventilation in your project. We recommend evaluating it based on the following four core dimensions:
- Select a single room heat recovery ventilator with appropriate airflow capacity based on your room’s size.
- Energy recovery is the core value of HRV. Compare the performance of different models of exchange cores.
- Consider the wall thickness and installation position.
- Select primary or high-efficiency filters based on the local environment, and confirm whether an intelligent control interface is required.
If you’re unsure, just let us know your needs and we’ll recommend the best model for you.
Single room HRVs typically use G3 or G4 air filters, which can effectively capture dust, hair, and other airborne particles to improve indoor air quality. These filters are easy to remove and clean, and can also be replaced when needed. At the same time, the maintenance costs are relatively low, making them suitable for long-term residential or commercial ventilation use. To maintain stable airflow and filtration performance, we recommend cleaning or replacing the filter regularly according to the usage environment.
Central heat recovery ventilators are typically used in whole-house ventilation systems. They require a duct network, making the installation process relatively complex and the overall cost higher. The single room heat recovery ventilator is a ventilation solution designed specifically for single spaces. It achieves both fresh air intake and exhaust heat recovery simply by being installed on an exterior wall, making installation easier and more cost-effective. For renovation projects involving bedrooms, offices, or apartments, we strongly recommend single-room HRV systems.
The single room heat recovery ventilator is highly suitable for small apartments and compact living spaces. Specifically designed for compact spaces, it features a compact structure and easy installation without requiring ductwork. With its cost-effectiveness and easy installation, it is particularly appropriate for small apartments, renovation projects, and rental properties.
No, the noise level of a single room heat recovery ventilator is generally low. Most modern units use high-efficiency EC motors and optimized fan designs, allowing the system to operate quietly during continuous ventilation. When running at low or medium speed, the noise level is typically suitable for bedrooms, offices, and other quiet environments, ensuring fresh air circulation without disturbing daily activities or sleep. Many models of the single room HRV also support multi-speed control, allowing users to adjust the airflow and noise level according to ventilation needs.





