The U.S. Indoor Air Quality Market was valued at USD 10.5 billion in 2024, and is projected to reach USD 12.9 billion by 2029, rising at a CAGR of 4.30%.
The report includes:
- 19 data tables and 51 additional tables
- An updated overview and in-depth analysis of the U.S. market for indoor air quality (IAQ) products and services
- Analyses of the market trends, with sales data for 2023, estimates for 2024, forecasts for 2025, 2027, and projections of compound annual growth rates (CAGRs) through 2029
- Estimation of the actual market size and revenue forecasts for the U.S. indoor air quality market, and corresponding market share analysis by type, product segments, end-use industry, and region
- Discussion of the major factors driving the growth of IAQ industry, history and importance, market trends and environment, regulatory concerns, and the effects of IAQ contaminants
- Analysis of the market opportunities with a holistic study of Porter’s Five Forces model and supply chain analysis of the IAQ industry considering both the micro and macro environmental factors prevailing in the marketplace
- Insight into the recent industry structure for indoor air quality market, government regulations and standards, key development issues, and the vendor landscape and operational integration
- Analysis of the key patent grants and intellectual property aspects of the market
- A discussion on ESG challenges and practices of the industry
- Competitive landscape featuring the leading manufacturers of IAQ products in U.S., their current ranking and company share analysis, along with the latest key developments within the industry
- Profiles of the leading market players, including Carrier, Daikin Industries Ltd., Honeywell International Inc., Johnson Controls and Trane Technologies Plc.
The EPA’s Science Advisory Board has consistently ranked indoor air pollution among the top five environmental risks to public health. Poor IAQ is one of the top major public health risks, and it is largely unregulated by federal and most state governments. More than 50 organizations, including the World Health Organization (WHO), across 38 countries, have established IAQ guidelines. For instance, in February 2024, the EPA strengthened the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM) 2.5 micrometers and smaller (PM2.5) to 9.0 μg/m³ to provide increased public health protection.
In the U.S., poor IAQ can be caused by humidity levels, inadequate ventilation, pets, dust, and volatile organic compounds (VOCs). In general, the most effective method to enhance IAQ is to mitigate pollution sources or reduce household emissions, increase the amount of outdoor air coming inside through improved ventilation systems, and use appropriate air cleaners. Also, changing air conditioning filters, maintaining air ducts, using cooking vents, maintaining humidity, using high-efficiency particulate air (HEPA) filters, and using air purifiers can improve air quality in indoor spaces.
Several air purifiers can eliminate indoor air pollutants. Air pollutants can be detected with more precise, efficient and compact sensors using environmental sensing technology. Soon, indoor air pollution may also be controlled through nanotechnology, which works by trapping or destroying indoor contaminants on a molecular level. For instance, in July 2024, the U.S. Food and Drug Administration (FDA) granted an additional 510(k) clearance to Kronos Advanced Technologies Inc.’s flagship product, Kronos Model 8, classifying it as a Class II Medical Device. It utilizes patented High Voltage Field air disinfection technology that can remove contaminants and allergens up to 14.6 nanometers (0.0146 microns), which is 20 times smaller than HEPA filters.
Table of Contents
Executive Summary
Increasing public awareness of indoor air quality products plays a key role in the consumption and sales of these products across the U.S. Most of these products have gained significant traction due to COVID-19, as they are laboratory tested and proven. According to the U.S. Food and Drug Administration (FDA), indoor air quality products have active pure technology that is capable of trapping and killing any type of surface and airborne viruses within 8 hours.
IAQ products have saved the lives of people during the pandemic period, and they have saved building occupants from indoor pollutants, which are five times higher in terms of quantity compared to outdoor pollution. The main reasons for indoor pollution include damp building areas, second-hand smoke, burning of fossil fuels, coatings and paints, building material radon and pollution from biological pollutants.
Outdoor air pollution, such as construction nearby a highly-populated area, is also a concern for indoor pollution. This can increase the pollution level in many buildings, which includes the emission of gas particles from vehicle exhaust systems.
Indoor air quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Indoor air pollution is caused by burning solid fuel sources, such as crop waste, firewood and dung for cooking and heating. The burning of such fuels in poor households leads to air pollution, which leads to respiratory diseases that can result in premature death. The WHO signifies that indoor air pollution is the greatest global environmental problem, particularly for the poorest populations, who often do not have access to clean fuels for cooking. According to the global data, indoor air pollution was attributed to an estimated 2,313,991 deaths in
2021, or 4.1% of global deaths.
Indoor air quality is a measurement of the quality of the air in a school, home, office or other building environments. The potential impact of indoor air quality on human health can be noteworthy for various reasons. According to the U.S. Environmental Protection Agency (EPA), U.S. residents spend approximately 90% of their time indoors, where the concentrations of some pollutants are often two- to five-times higher than typical outdoor concentrations. Certain people are also susceptible to the adverse effects of pollution (e.g., very young children, older adults, people with the cardiovascular or respiratory disease) that tend to spend even more time indoors.
Indoor air pollutants include tobacco, wood, coal heating, cooking appliances and fireplaces that release harmful combustion byproducts (e.g., carbon monoxide, particulate matter) directly into the indoor environment. Other factors that affect indoor air quality include the air exchange rate, weather conditions, outdoor climate and occupant behaviour.
Companies Mentioned
- Aprilaire
- Beyond by Aerus
- Blueair
- Camfil
- Carrier
- Daikin Industries Ltd.
- Honeywell International Inc.
- Johnson Controls
- Lennox International Inc.
- Mann+Hummel
- Panasonic Corp.
- Rectorseal
- RGF Environmental Group Inc.
- Rheem Manufacturing Co.
- Trane Technologies PLC.
Table Information
| Report Attribute | Details |
|---|---|
| No. of Pages | 119 |
| Published | February 2025 |
| Forecast Period | 2024 - 2029 |
| Estimated Market Value ( USD | $ 10.5 Billion |
| Forecasted Market Value ( USD | $ 12.9 Billion |
| Compound Annual Growth Rate | 4.3% |
| Regions Covered | United States |
| No. of Companies Mentioned | 15 |
