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Your Leading Fresh Air Ventilation System Manufacturer in China | Aosun

A fresh air ventilation system provides continuous indoor air exchange by supplying filtered outdoor air and removing stale indoor air, helping maintain healthy, comfortable, and energy-efficient living and working environments.

Features of Aosun Fresh Air Ventilation System

  • Continuously supplies filtered outdoor air while exhausting stale indoor air to improve indoor air quality.
  • Supports centralized systems and decentralized solutions for different project requirements.
  • Equipped with EC motor technology and heat recovery ventilation systems for lower energy consumption.
    Optimized fan structure and airflow path help reduce noise levels for residential and hotel applications.
  • Suitable for apartments, offices, hotels, schools, and renovation projects with different ventilation demands.

Aosun | Professional Fresh Air Ventilation System Manufacturer in China

Are you still troubled by those new air ventilation systems that have low efficiency, poor stability and are prone to quality issues? Don’t worry, Aosun can support you. Aosun is a professional manufacturer specializing in high-performance fresh air ventilation systems, providing reliable ventilation solutions suitable that can stand the test of long-term operation and meet global market standards.

Aosun has standardized production workshops, advanced automated processing equipment and professional R&D laboratories. We strictly control every production stage, from component processing, system assembly to finished product inspection. All fresh air ventilation systems meet industry-leading certification standards, including ISO, Intertek, RoHS, CE, UKCA and ErP, ensuring stable, consistent and high-quality products for global residential and commercial projects.

Our complete product catalog covers various standardized new air ventilation system solutions, including basic ventilation systems, filter-type new air ventilation systems, and heat recovery ventilation systems, which can meet different climate conditions, budget requirements and engineering needs. In addition to standard products, we also provide one-stop OEM and ODM customization services to meet your unique project requirements.

Single Room HRV

It continuously supplies fresh air while recovering heat from exhaust air, helping improve indoor air quality and reduce energy loss.

White Ductless HRV
Duckless HRV

It is designed with energy-saving motors and optimized airflow structures to ensure stable performance with low consumption.

Wall Mounted HRV
Wall Mounted HRV

Compact, Silent, and Intelligent Heat Recovery Solution for Residential and Commercial Projects.

Mini HRV

It has a compact structure and is suitable for improving air quality in small Spaces, reducing the burden on HVAC systems.

What is a Fresh Air Ventilation System?

Fresh air ventilation system is essentially a “air exchange system”. Its core function is to introduce fresh outdoor air into the room while removing the stale indoor air, thereby improving the indoor air quality. Unlike traditional natural ventilation, this system can provide a more scientific and reliable ventilation effect.

Why is the Fresh Air Ventilation System So Important?

Modern buildings are becoming increasingly sealed to reduce energy consumption and improve insulation performance, but this also brings a series of indoor air problems that cannot be solved by natural ventilation:

The indoor air circulation is poor and the environment is hot and humid

The continuous accumulation of carbon dioxide leads to drowsiness, low efficiency and physical discomfort

Excessive indoor humidity can lead to mold growth, wall peeling and furniture getting damp and damaged

Continuous existence of decoration smell, lampblack smell and other special smell

These problems are particularly prominent in high-rise apartments, hotels, office buildings and newly constructed buildings in enclosed spaces. Therefore, professional mechanical fresh air systems have become an indispensable supporting facility for modern buildings.

How does the Fresh Air Ventilation System Work?

The fresh air ventilation system achieves indoor air renewal through three standardized and efficient steps.

1.Air intake and filtration

The system actively draws in fresh outdoor air, purifies and filters it through a filter screen, effectively removing dust, pollen, odors and other impurities from the air.

2.Air supply

The fan evenly and stably delivers the filtered fresh air to every corner of the room, achieving full space coverage.

3.Exhaust system

The stale air in the room is discharged to achieve air replacement by  exhaust fan.

There are also optional HRV/ERV devices that can recover the temperature and humidity energy in the room during the ventilation process, significantly reducing the energy consumption for heating and cooling in buildings and achieving green and energy-efficient ventilation.

Common Types of Fresh Air Ventilation Systems

Basic Fresh Air System

Equipped with basic inline fans, ducts and vents, it focuses on the function of air exchange. It is an economical and cost-controllable ventilation solution, suitable for traditional indoor ventilation projects with low pollution levels and no high energy-saving requirements.

Fresh Air System with Filter

Based on the basic system, it is equipped with multiple-level filtration modules such as  carbon filter and HEPA, which can effectively filter outdoor dust, smog, pollen and odors. It is specially designed for areas with high dust content, severe pollution and poor outdoor air quality.

Heat Recovery Ventilation System

Equipped with an efficient heat exchange core, HRV can recover over 70% of the indoor temperature energy during air exchange, avoiding temperature fluctuations caused by ventilation. This is an energy-saving and efficient ventilation solution, which widely applicable to renovation and new construction projects in Europe, North America and other regions with high energy-saving standards.

Application of Fresh Air Ventilation

The new ventilation system offers precise ventilation solutions for various building scenarios, effectively addressing the unique indoor air problems in different spaces, and creating a healthy, comfortable and energy-efficient indoor environment.

Residential Buildings

Modern residential buildings have high sealing performance, which often leads to problems such as indoor heat, excessive carbon dioxide concentration, residual odors from decoration, and dampness and mold. Natural ventilation is limited by weather and ground conditions.

Implementing 24-hour continuous filtration of fresh air exchange can effectively remove formaldehyde and odors, regulate indoor humidity, maintain fresh and breathable indoor air for a long time, and enhance the comfort of family living.

Hotel Building

The guest rooms are closed for a long time, resulting in poor ventilation, which can lead to unpleasant odors from bedding, dampness and mold growth, as well as turbid air. This seriously affects the guest experience and the evaluation of the accommodation.

Without opening the windows, a quiet and balanced air exchange can be achieved, continuously removing the polluted air and unpleasant odors from the room. The room air remains fresh and dry throughout the day, meeting the high-level requirements for quiet, comfortable and well-ventilated accommodation spaces.

Office and Commercial Spaces

The densely populated and long-term enclosed office environment will lead to rapid accumulation of carbon dioxide, resulting in murky, hot, and dry air, causing employee fatigue and reducing work efficiency.

To provide a stable and sufficient amount of fresh air for enclosed spaces, reduce the indoor carbon dioxide concentration, improve indoor air quality, and create a healthy and efficient office environment for long-term workers.

Catering Establishments

Cooking fumes, oil odors and unpleasant smells accumulate, resulting in high indoor humidity and poor air quality, which seriously affect the dining experience and the store environment.

Combined with local exhaust ventilation, it can quickly remove residual cooking fumes and unpleasant smells, promote indoor and outdoor air circulation, reduce damp and greasy air, and create a fresh and pleasant dining environment.

Professional System Design and Engineering Proposal

According to different project environments and customer requirements, we provide targeted system design and configuration suggestions to ensure the best ventilation effect and operational efficiency.

For environments with strong odors and severe pollution, we recommend that you equip with efficient activated carbon filtration modules to enhance the ability to remove odors and impurities.

For projects with long-term operation and energy-saving requirements, we suggest that you prioritize the use of EC variable-frequency fans to reduce long-term operating energy consumption and achieve energy savings.

For places with high requirements for quietness such as hotel rooms, bedrooms, and offices, we recommend that you install noise-reducing accessories to reduce pipeline air noise and create a quiet indoor environment.

In pipeline design, you need to optimize the layout of the air ducts, reduce the number of bends, ensure smooth and stable airflow.

Do I need ducts for a fresh air system?

Most new ventilation systems for entire houses or entire buildings require the installation of ducts to evenly distribute fresh air to each room and exhaust stale air. The ducts ensure uniform airflow throughout all areas and operate quietly. The decentralized HRV system does not require ducts and is suitable for small spaces, renovations, and refurbishments.

What is the difference between fresh air system and air conditioner?

The fresh air system focuses on air exchange and filtering pollutants. HRV/ERV type equipment recovers heat during ventilation, but it cannot actively cool or heat. Air conditioners focus on temperature regulation and only circulate indoor air, without introducing fresh outdoor air. These two devices address completely different indoor air quality issues and complement each other.

Can fresh air systems be used together with air conditioning?

They can be widely combined and applied in residential and commercial projects. The fresh air system can continuously replenish fresh outdoor air, avoiding the stuffiness and high carbon dioxide concentration problems caused by the closed operation of air conditioners. The HRV/ERV unit recovers the indoor cold and warm energy, reducing the power loss of air conditioners and thus lowering the overall energy cost throughout the year.

Can fresh air systems be used in retrofit apartments?

Sure. Aosun ventilation system is perfectly suitable for apartment renovations. We offer solutions for duct layout, ventilation fans, and ceiling diffuser. The HRV system is widely popular in apartment renovation projects in North America and Europe, meeting the local energy-saving renovation standards.

Is HRV necessary for fresh air systems?

HRV is not mandatory, but it is highly recommended for most buildings that are used for a long time. The HRV/ERV system can recover over 70% of the indoor heat energy, preventing heat loss during ventilation and reducing the operating costs of HVAC systems. It is particularly suitable for cold winters or hot summers, and also meets the ErP and energy standards for new and renovated projects.

How do I choose the right fresh air system for my project?

The key factors to be considered include: room type and application, air flow requirements, installation conditions, energy efficiency requirements, noise level requirements, and filtration needs. Choosing the right system ensures stable airflow, reduces operating costs, and improves indoor air quality.

What maintenance is required for a fresh air ventilation system?

The basic maintenance includes the following: cleaning or replacing the filter screen, regularly checking the ventilation pipe, and testing the fan operation condition. For the majority of fresh air systems, a simple maintenance can be performed every few months.

Does a fresh air system increase electricity consumption?

The basic type duct fan consumes very little electricity during daily operation. If an HRV heat recovery core is equipped, the energy saved by the air conditioning and heating system far exceeds the power consumption of the equipment itself, thereby reducing the total annual electricity bill. Equipping an EC motor can further reduce energy consumption.

What is the difference between centralized and decentralized fresh air systems?

The centralized fresh air system is a main fan connected to the air ducts throughout the building, providing balanced air exchange for all rooms. It is suitable for large commercial spaces. The decentralized fresh air system serves only one room and does not require a complex duct system, with lower installation costs.

How long does it take to install a fresh air ventilation system?

The installation time depends on the system type, building structure and the complexity of the project. For single-room or decentralized systems: usually each unit takes only a few hours to install, as only the walls need to be installed and basic electrical connections made. Small residential systems generally require half a day to one day. Centralized duct systems may take 1 to 3 days or even longer.

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