In the fields of cold chain logistics and food storage, humidity control in low-temperature environments has always been a troublesome issue. 

Traditional dehumidification equipment often performs poorly or even fails completely in low-temperature conditions, leading to frequent 

problems such as ice formation in the cold storage, deterioration of goods, and corrosion of equipment.

Recently, a FREEAIR industrial dehumidifier specially designed for low-temperature environments has emerged in the market. With a large 

dehumidification capacity of 169L-960L/D and excellent low-temperature adaptability, it is changing this situation. 

01 Low-temperature and high-humidity environment, the hidden killer of cold storage management

The cold storage environment may seem cold and dry on the surface, but in fact, it harbors the risk of high humidity. The temperature difference 

between inside and outside the cold storage can reach over 30℃. When humid and hot air from the outside enters through the door, ventilation, 

or gaps in equipment, it will quickly condense into water droplets upon encountering the cold, creating a contradictory environment of "low 

temperature and high humidity".

The frozen food, fruits, and other moisture-containing goods stored inside will slowly release moisture at low temperatures, and over time, the 

accumulated moisture will cause the humidity to exceed the standard. Moreover, the cold storage is highly sealed, and traditional ventilation 

systems are difficult to effectively dehumidify. Instead, it may introduce external moisture, making the problem even more complicated. 

02 Breakthrough in Low-Temperature Dehumidification Technology, FREEAIR's Innovative Solution

FREEAIR industrial dehumidifiers employ advanced low-temperature dehumidification technology, successfully resolving the problem of 

traditional dehumidifiers freezing and shutting down in low-temperature environments.

The equipment features a unique dual condenser design. Cold air is drawn in through the return air port, then preheated by the first-stage 

condenser before entering the evaporator to cool and dehumidify, effectively preventing the evaporator from freezing. An intelligent defrosting 

algorithm is applied, using both temperature and time parameters for control, ensuring that the dehumidification capacity does not decrease 

by more than 15% at -15℃.

The core components use imported compressors from abroad, ensuring efficient and stable operation of the equipment in low-temperature 

environments and longer lifespan. 

03 Outstanding Performance Parameters, Meeting Diverse Needs

The FREEAIR industrial dehumidifier series offers multiple dehumidification capacity options ranging from 169L/D to 960L/D, enabling it to 

meet the dehumidification requirements of various-sized cold storage facilities.

This series of products all feature intelligent control systems, equipped with digital humidity display, allowing for free setting and control of 

the humidity range. It supports 0-24 hour timed on/off functions, has automatic fault diagnosis and alarm functions, and is convenient and 

reliable to use.

The product design also fully considers the actual usage scenarios. It is equipped with swivel wheels at the bottom, making it easy and flexible 

to move; it adopts a continuous drainage design using hoses, eliminating the need for manual water pouring; it is applicable to a temperature 

range as low as -10℃ to -40℃, meeting the requirements of most cold storage environments. 

04 Case Study: FREEAIR's Outstanding Performance in Cold Storage Dehumidification

A large-scale food cold chain storage center was plagued by high humidity issues in its cold storage. This center had multiple temperature 

ranges (2-8℃) of refrigerated warehouses for storing frozen foods and fruits and vegetables.

Due to improper humidity control, problems such as ice formation on the floor, frost on packaging surfaces, and rusting of metal equipment 

frequently occurred in the cold storage, which not only led to high loss rates of goods but also posed safety hazards.

After introducing the FREEAIR-FLDW-480 dehumidifier (with a dehumidification capacity of 480L/D), the situation was completely improved. 

After the equipment operated stably, the humidity in the warehouse remained within the ideal range of 60%-70%.

The preservation rate of goods increased by 30%, ice formation on the floor disappeared, the corrosion of equipment was significantly reduced, 

and the overall energy consumption decreased by 20%-40%. 

05 Forward-looking Perspective: The Future Path of Low-Temperature Dehumidification Technology

With the development of industries such as cold chain logistics, new energy batteries, and biomedicine, the demand for low-temperature 

and low-humidity environments is increasing day by day, and low-temperature dehumidification technology will continue to evolve.

Future dehumidification equipment will be more intelligent and integrated. For example, the AIoT Manage platform developed by EK Industrial 

Air Conditioning can dynamically optimize the HVAC system, achieving real-time optimization control and efficient energy-saving operation 

for the entire system and the entire period.

Energy conservation and environmental protection will become the core direction of technology development. By using innovative solutions 

such as waste heat regeneration and efficient heat pumps, the energy efficiency of the dehumidification system can reach up to 60%, significantly 

reducing operating costs for enterprises while reducing carbon footprints.

The FREEAIR industrial dehumidifier, with its strong dehumidification capacity and excellent low-temperature performance, has become an 

indispensable partner in the cold chain industry. Its emergence has made cold storage management no longer a difficult problem for enterprises 

but a competitive advantage in quality assurance.

Whether it is large-scale cold chain logistics centers or small food storage enterprises, they can find suitable models to make humidity control 

under low-temperature conditions simple and efficient.