I. Market Size: Crossing the $10 Billion Threshold

In 2025, the global constant-humidity equipment industry achieved a milestone breakthrough. According to statistics compiled from multiple industry research institutions, the global market size for constant-humidity equipment (including dehumidifiers, humidifiers, precision air conditioners, and other categories) reached approximately $28.76 billion in 2025, representing an 8.3% increase from 2024 and continuing the steady growth trend of a 7.9% compound annual growth rate (CAGR) over the past five years. When examined through a more focused statistical lens, the global humidity control equipment market has surpassed the $15 billion threshold, with year-over-year growth remaining above 8%. The emergence of this “$10 billion-level” market signifies that humidity control equipment has evolved from a traditional supporting role in environmental regulation to an indispensable core component of modern industrial and commercial infrastructure.

In terms of product structure, industrial humidity control equipment accounts for the largest share at approximately 43.2%, while the commercial and residential sectors account for 31.5% and 25.3%, respectively. The industrial sector’s absolute dominance reflects the industrial logic of humidity control equipment being deeply intertwined with high-end manufacturing—the more precise the manufacturing process, the stricter the requirements for humidity control. In the residential market, sales of all-in-one humidifiers and dehumidifiers with smart connectivity features have surpassed 12 million units, with the average price dropping to $230, indicating that consumer demand is accelerating.

As we enter 2026, the industry’s growth momentum shows no signs of slowing. According to estimates, the global constant-humidity equipment market is projected to reach approximately $7 billion in 2026 (based on specific statistical criteria), with the Chinese market performing particularly strongly; its share of the global market has climbed from about 18% five years ago to nearly 28%.

II. Regional Market Landscape: Asia-Pacific Leads, Diverse Differentiation

The global constant-humidity equipment market exhibits distinct regional differentiation.

The Asia-Pacific region is undoubtedly the absolute center of gravity for the global market. In 2025, the Asia-Pacific region accounted for 41.8% to 45% of the global constant-humidity equipment market share, with East Asia and Southeast Asia contributing over 40% of the global market share thanks to their robust electronics manufacturing and biopharmaceutical industry clusters. In terms of specific product categories, the Asia-Pacific region dominates the dehumidifier market, with a market share of 44.17% in 2025. As the core growth engine of the Asia-Pacific region and the world, China’s humidity control equipment market is growing at a rate significantly higher than the global average. The growth drivers in the Asia-Pacific region primarily stem from the continued expansion of the manufacturing sector, the large-scale construction of data centers, and the clustering effects of the semiconductor industry.

The North American market follows closely behind, accounting for approximately 19.4% to 25% of the global market share. Leveraging its deep technological expertise, the North American market holds a dominant position in the aerospace, cutting-edge research, and high-end data center sectors. In the dehumidifier sector, North America generated $2.05 billion in revenue in 2025, with residential demand proving particularly strong. However, it is worth noting that the North American market’s growth rate has slowed to around 3.8%, signaling that the market is maturing.

The European market accounts for approximately 20% to 22.7% of the global market share. The European market is also facing pressure from slowing growth, currently at around 4.1%. However, the revision of the EU Ecodesign Directive (ErP Lot 20), completed in 2025, imposes stricter requirements on smart standby power consumption and material recycling rates, which will drive the European market toward a product structure that meets higher technical standards.

The Middle East and Africa (MEA) region is the fastest-growing market globally, with a growth rate of 11.2% projected for 2025. This high growth is primarily driven by demand from the petrochemical and precision agriculture sectors, while latent demand in the pharmaceutical cold chain and food processing sectors continues to emerge.

III. Key Drivers: Synergistic Efforts of Three Major Engines

The rapid growth of the constant-humidity equipment market stems from the combined effect of multiple structural demands.

Data Centers: The Fastest-Growing Segment. With the rapid development of cloud computing, artificial intelligence, and the Internet of Things, global data center construction has entered a fast-track phase. Electronic equipment such as servers, densely deployed within data centers, generates a significant amount of heat; precision air conditioning systems are therefore critical for maintaining a constant temperature and humidity environment and preventing equipment overheating and downtime. By 2025, the global market size for data center precision air conditioning is projected to reach $2.68 billion; demand for constant-humidity equipment in data centers is projected to reach approximately $5.42 billion, representing a year-over-year increase of 12.6%, making it the fastest-growing segment. The rapid deployment of modular data centers and the continuous rise in rack power density are further driving up demand for high-efficiency cooling and humidity control systems.

Pharmaceutical Warehousing: Rigid Demand Driven by Compliance. Under strict GMP regulations, the pharmaceutical industry imposes extremely high requirements for temperature and humidity control in warehousing environments. Products such as vaccines, biopharmaceuticals, and active pharmaceutical ingredients (APIs) must be stored within precise temperature and humidity ranges, making constant humidity equipment an essential component of the pharmaceutical supply chain. By 2025, the pharmaceutical and biopharmaceutical sector (including vaccine storage) is projected to account for 22.8% of downstream applications for constant temperature and humidity equipment. With the rapid expansion of the global biopharmaceutical industry, this demand is expected to continue growing.

High-End Electronics Manufacturing: Precision Requirements Drive Value Growth. High-end electronics industries—such as semiconductor manufacturing, display panel production, and lithium-ion battery manufacturing—require extremely high precision in humidity control within production environments, with fluctuations often needing to be kept within ±1% RH. Procurement spending on related equipment already accounts for more than 30% of the overall constant temperature and humidity equipment market. By 2025, the electronics and semiconductor industry will account for the largest share of downstream applications for constant temperature and humidity equipment, reaching 31.2%. As core supporting equipment for semiconductor manufacturing, sales of ultra-low-humidity moisture-proof cabinets are projected to grow by 32.6% year-over-year in 2025. The research, development, and production of new energy batteries, along with the storage and testing of new semiconductor materials, are forming a second growth curve for the demand for constant humidity equipment.

IV. Outlook for the Next Five Years: Moving Toward a 100-Billion-Yuan Market

Looking ahead to 2026–2030, the global constant-humidity equipment market will enter a new phase of development characterized by intelligence, integration, and sustainability.

In terms of market size, the global constant-humidity equipment market is projected to exceed $42 billion by 2030, with a compound annual growth rate (CAGR) maintained between 7.2% and 8.1%. Investments in industrial automation and smart city infrastructure will drive approximately 60% of the incremental demand. Demand for low-dew-point humidity control equipment in emerging sectors such as hydrogen fuel cell and lithium-ion battery manufacturing will form a separate growth driver.