Increasing demand for energy-efficient HVAC systems are driving the global dedicated outdoor air system (DOAS) market and are expected to drive market expansion in the near future at a CAGR of 10.2% during the forecast period 2025 to 2035

Market Research Future (MRFR) has published a cooked research report on the “Global Dedicated Outdoor Air System (DOAS) Market” that contains information from 2019 to 2035.

The Global Dedicated Outdoor Air System (DOAS) Market is estimated to register a CAGR of 10.2% during the forecast period of 2024 to 2035.

MRFR recognizes the following companies as the key players in the Global Dedicated Outdoor Air System (DOAS) Market— include Greenheck Fan Corporation, Johnson Controls, Carrier, Daikin Industries Ltd., Lg Electronics, Desiccant Rotors International, AAON, Inc., Trane Technologies, XETEX, NEXGEN, And Among Others.

Market Highlights

The Global Dedicated Outdoor Air System (DOAS) Market is estimated to register a CAGR of 10.2% during the forecast period and is estimated to reach USD 13.57 Million by 2035.

The increased focus on indoor air quality (IAQ) has emerged as a key driver of global demand for dedicated outdoor air systems (DOAS). Concerns about respiratory diseases, allergies, and long-term health impacts are at an all-time high, with people spending the bulk of their time indoors where VOCs, particulate matter, CO₂, and pathogens can concentrate in the indoor environment. The COVID‑19 pandemic amplified awareness of the importance of ventilation in limiting the airborne transmission of disease and prompted the installation of new and advanced HVAC systems with dedicated outside-air handling or building retrofits.

Regulatory requirements and wellness-oriented standards such as WELL and LEED are beginning to require higher air exchange and filtration levels, making DOAS a demonstrative solution for consistently delivering conditioned and filtered outdoor air. As developers, facility managers, and occupant users place importance on health, well-being, and regulatory compliance, the perception of DOAS source as energy-efficient HVAC and its use as infrastructure for maintaining healthier indoor environments is gaining legitimacy.

Segment Analysis

The Global Dedicated Outdoor Air System (DOAS) Market has been segmented based on By Technology, By Air Flow Strategy, By System Architecture, By System Capacity, By System Integration Type, By Application.

The Dedicated outdoor air system (DOAS) market has been segmented based on Technology into DX (Direct Expansion) Systems, Energy Recovery Ventilation (ERV) Systems, Enthalpy Wheels and Heat Recovery Ventilation (HRV) Systems. The Energy Recovery Ventilation (ERV) Systems segment accounted for the largest market share in 2024 and Whereas the Enthalpy Wheels segment will likely register the highest CAGR during the projected period.

Energy Recovery Ventilator (ERV) has high efficiency with an alternative ventilation system design that can significantly reduce a building's heating and cooling loads. Pairing DOAS and ERV with a ductless heating and cooling system, such as Variable Refrigerant Flow or Mini-Split heat pumps, can further reduce heating and cooling loads while enhancing comfort. Conventional Heating, Ventilation and Air Conditioning (HVAC) systems must fully temper fresh air before distributing it throughout the building. This contributes to high heating and cooling loads and means that fresh air is only provided simultaneously with heating or cooling.  DOAS and ERV system combined with a properly downsized heating and cooling system and programmed HVAC controls will generate significant energy savings. Installation of an ERV at the highest efficiency available.

The Dedicated outdoor air system (DOAS) market, in this report, has been segmented based on Air flow strategy into Constant Air Volume (CAV), Variable Air Volume (VAV) and Displacement Ventilation (DV). The Variable Air Volume (VAV) segment accounted for the largest market share in 2024 and Whereas the Variable Air Volume (VAV) segment will likely register the highest CAGR during the projected period.

Variable Air Volume System is a type of heating, ventilating and air conditioning system. Variable Air Volume varies the flow of air at constant temperature. The advantage of Variable Air Volume system is that it can more precisely room temperature, it can reduce energy consumption by system fans and so on. Dedicated Outdoor Air System (DOAS) is the new kind of technology of VAV system in which the air flow which is provided by the fan system will be now limited to ventilation components. Due to this, by this the amount of energy required to deliver heating and cooling will be slightly reduced, but pump energy will somehow increase. As a result, the building with low cooling requirements can implement this technology.

The Dedicated outdoor air system (DOAS) market, in this report, has been segmented based on System Architecture into Packaged DOAS Units, Modular/Custom DOAS via Air Handling Units (AHUs) and Integrated Systems with Third-Party Components. The Packaged DOAS Units segment accounted for the largest market share in 2024 and Whereas the Modular/Custom DOAS via Air Handling Units (AHUs) segment will likely register the highest CAGR during the projected period.

DOAS units are packaged direct expansion (DX) systems incorporating efficient variable-speed or multi-stage compressors for precise temperature and humidity control. DOAS can range anything from a small micro-ducted fan unit in residential applications to big commercial packaged units. The most common features of a large-scale DOAS system are filters, supply and exhaust fans, cooling coils, heating sources, and some means of dehumidification. These components are there to ensure that only clean, pre-conditioned air makes its way into the facility through the air ducts.

 DOAS achieves the above-mentioned benefits by leveraging cutting-edge refrigeration, control, and energy-recovery technologies. This broad range of compressor capacity modulation is crucial to maintaining optimal comfort while minimizing energy usage. Coupling variable-speed DX technology with energy recovery solutions, like enthalpy wheels, plate heat exchangers, and hot gas and liquid sub-cool reheat systems, allows for high efficiency even under challenging conditions.

The Dedicated outdoor air system (DOAS) market, in this report, has been segmented based on System capacity into Less than 5 Tons / 1,000 CFM, 5 to 15 Tons/ 1,000 to 3,000 CFM, 15 to 30 Tons/ 3,000 to 6,000 CFM and More than 30 Tons / >6,000 CFM. The More than 30 Tons / >6,000 CFM segment accounted for the largest market share in 2024 and Whereas the More than 30 Tons / >6,000 CFM segment will likely register the highest CAGR during the projected period.

Dedicated Outdoor Air Systems (DOAS) with capacity exceeding 30 tons or airflow rates above 6,000 CFM, several manufacturers offer high-capacity solutions tailored for large commercial and industrial applications. The purpose of these systems is to improve indoor air quality and occupant comfort by effectively ventilating and dehumidifying spaces. Think about things like building size, occupancy, local climate, and particular ventilation needs when choosing a DOAS. It is used in buildings, such as occupancy levels, internal heat loads, and ventilation standards. handle the local climate, ensuring reliable performance year-round. Integrate with existing building management systems for optimal control.

The Dedicated outdoor air system (DOAS) market, in this report, has been segmented based on System integration type into OEM-Integrated (Built by Customer) and Third-Party Integrator Assembled Systems. The OEM-Integrated (Built by Customer) segment accounted for the largest market share in 2024 and Whereas the OEM-Integrated (Built by Customer) segment will likely register the highest CAGR during the projected period.

OEM-integrated DOAS is expected to grow significantly due to rising demand for sustainable, energy-efficient, and customized HVAC solutions. Even though there are obstacles, they also offer chances for creativity and cooperation between clients and producers. OEM-integrated DOAS solutions are anticipated to be crucial in determining the direction of indoor air quality and energy efficiency in the future as building standards change and awareness rises.

Dedicated outdoor air systems require separate equipment for ventilation and cooling, which can significantly increase the overall cost of HVAC systems. This cost factor can deter some customers from investing in DOAS solutions, especially in cost-sensitive markets. The lack of awareness can hinder the adoption of DOAS solutions, as potential customers may opt for traditional HVAC systems that they are more familiar with. DOAS developments are in energy recovery technology, where devices like energy recovery wheels, heat exchangers, and enthalpy wheels are integrated into DOAS units to capture and repurpose heat and moisture from exhaust air, reducing the energy required to condition incoming outdoor air.

The Dedicated outdoor air system (DOAS) market, in this report, has been segmented based on System integration type into OEM-Integrated (Built by Customer) and Third-Party Integrator Assembled Systems. The Commercial/ Comfort Applications segment accounted for the largest market share in 2024 and Whereas the Commercial/ Comfort Applications segment will likely register the highest CAGR during the projected period.

Commercial Applications help experiencing robust growth, driven by increasing demand for energy-efficient HVAC solutions that improve indoor air quality (IAQ) in commercial, institutional, and residential buildings. The adoption of DOAS is further accelerated by advancements in sensor technology and smart HVAC systems, as well as the need for systems that offer flexibility and improved occupant comfort while reducing overall energy consumption. Government regulations for HVAC equipment, increasing adoption of DOAS for residential and commercial applications, and increasing focus on indoor air and environmental quality are the key factors expected to boost the growth of the DOAS market in the next five years.

Regional Analysis

The report on the global dedicated outdoor air system (DOAS) market has been segmented based on regions such as: North America, Europe, Asia-Pacific, Middle East & Africa, & South America. North America accounted for the largest market share in 2024 and is anticipated to reach USD 1.91 Billion by 2035. Asia-Pacific is projected to grow at the highest CAGR of 11.2% during the forecast period.

The demand for DOAS has increased in recent years in North America countries such as US and Canada. There is a high demand for DOAS in retail, hospital, and office applications in North America as this region is host to multiple enterprises across the commercial space where a massive number of DOAS are needed. The need for energy efficiency, better indoor air quality, and rising demand for DOAS from residential and commercial buildings are some of the drivers driving the dedicated outside air system market in North America.

 The US is a major contributor to the growth of the DOAS market in North America. Government regulations in the region have supported the growth of the market. For example, government initiatives such as the ENERGY STAR Verified HVAC Installation Program (ESVI), and the Weatherization Assistance Program (WAP) are fostering the expansion of the DOAS sector. The combination of environmental stewardship, health-conscious building design, and technological innovation is reflected in current trends in the North American DOAS market. One significant development is the growing integration of AI and machine learning algorithms with DOAS systems to dynamically change ventilation rates based on occupancy patterns and exterior air quality indicators. Due to incentives for energy-efficient retrofits and renovations, demand for DOAS installations in commercial and institutional buildings is also rising in the United States and Canada. Canada has the Moderate growth with strengths in retail sales and stable government spending.

Key Findings of the Study

• The Global Dedicated Outdoor Air System (DOAS) Market is expected to reach USD 13.57 Million by 2035, at a CAGR of 10.2% during the forecast period.


• The Asia Pacific region accounted for the fastest growth in the global market.


• Based on By Application, the Commercial/ Comfort Applications segment was attributed to holding the largest market in 2024.


• Greenheck Fan Corporation, Johnson Controls, Carrier, Daikin Industries Ltd., Lg Electronics, Desiccant Rotors International, AAON, Inc., Trane Technologies, XETEX, NEXGEN, And Among Others are the key market players.