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This section provides an overview for photocatalytic deodorizing devices as well as their applications and principles. Also, please take a look at the list of 7 photocatalytic deodorizing device manufacturers and their company rankings. Here are the top-ranked photocatalytic deodorizing device companies as of April, 2025: 1.Teclock, 2.Green Millennium, Inc., 3.Sunstar Engineering Americas, Inc..
Table of Contents
Figure 1. Photocatalytic deodorization system
A photocatalytic deodorization device is a device that deodorizes the air by oxidizing and decomposing malodorous and harmful substances through the strong oxidizing power of photocatalysts supported on the filter. Photocatalyst is effective when light strikes its surface, oxidizing and decomposing harmful substances and odor-causing substances.
As a result, it exerts deodorizing and antibacterial effects and purifies the air. Although it has an oxidizing power stronger than ozone, it is safe and does not cause harm to the human body. This technology originated in Japan.
Photocatalysts can be used over and over again because they are voluntarily renewable by light. It is also characterized by its ability to maintain its effectiveness with simple maintenance and the fact that it does not need to be disposed of.
Photocatalytic deodorization devices are used to purify the air in the surrounding environment by installing them in places where bad odors are a problem. They can remove pollen, mold, tobacco, bacteria, and even viruses such as new strains of influenza.
They are often employed on the merit that they are safer than ozone and other substances. Therefore, it is mainly used in places where safety and hygiene are important. It is also used in university and corporate laboratories where animals and other animals are kept, food factories and kitchens, nursing homes, and hospitals.
It is also used in places where care is taken not to damage brands and images due to bad odors (large commercial facilities with many people coming and going, hotels and other lodging facilities). Because of its high oxidizing power and very strong deodorizing action, it is also used in places with very strong odors, such as sewage treatment facilities and sludge treatment facilities.
Figure 2. Principle of photocatalysis
Photocatalytic deodorization devices utilize the principles of photocatalysis and hydrodynamics. The principle of photocatalytic deodorization is an oxidative decomposition reaction.
Compared to the oxidation potential of ozone, which is 2.07, the oxidation potential of titanium oxide, a component of photocatalyst, is 3.20. This indicates that the oxidation potential of photocatalyst is stronger than that of ozone.
Some products use the principle of hydrodynamics to devise an internal structure to make the pressure distribution more uniform, thus reducing the size of the device. Photocatalytic filters are constructed with two or three layers to increase the area where air comes into contact with the photocatalyst, thereby improving efficiency.
Figure 3. Types of photocatalytic deodorizers
The structure of the product basically consists of a photocatalytic filter and a UV lamp. Filters carrying photocatalyst (titanium dioxide) include plastic, ceramic (alumina), and aluminum, and the number of filters varies depending on the product. Plastic is lightweight and resistant to breakage, ceramic is a thermally and chemically stable material, and aluminum is high-strength and lightweight, respectively.
They also come in a variety of shapes, such as directly above the fan, horizontally mounted, and ceiling-suspended types, and in sizes ranging from small enough to be installed indoors to large enough for outdoor use. Photocatalysts are self-regenerating by light, so maintenance of the photocatalyst itself is low maintenance. However, the UV lamps need to be replaced periodically.
When used for kitchen exhaust containing oily smoke, it is effective to select a product with a cyclone scrubber or grease filter as a pretreatment.
*Including some distributors, etc.
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Green Millennium, Inc., established in 2003 and headquartered in Pomona, California, is a manufacturer that specializes in photocatalyst coating products. The company offers a range of products, including photocatalysis titanium dioxide (TIO2) self-cleaning coating technology, OEM manufacturing (Float Glass), and solar panel coating. It also offers hygienic surface treatment, deodorization, sterilization, and pollution control. Its hygienic surface treatment prevents the spread of pathogens and creates a healthier work and home environment. The company has achieved ISO 9001 and ISO 14001 certification. It serves industries such as building construction, transportation, agriculture, and more.
Sunstar Engineering Americas, Inc., founded in 1932 and located in Springboro, Ohio, is a manufacturer of adhesives, sealants, and coating products. The company offers a range of products, including weld bond adhesive, hem flange adhesive, body sealer, underbody coating, and acoustic cavity filler. They serve functions such as bonding, sealing, protecting against corrosion, and enhancing acoustic insulation. The products offered by the company are predominantly used in the automotive industry, particularly in the manufacturing and maintenance of vehicles. The company also holds ISO 14001 certification.
Teclock, founded in 1950 and based in Okaya, Nagano, Japan, is a distinguished manufacturer of precision measuring instruments. Its instruments has a high dimensional accuracy with a smallest scale of 0.0005mm. Its product lineup includes dial indicators, lever testers, thickness gauges, depth gauges, and calipers. The company also offers height gauges, stands, handy durometers, and micrometers. The company also provides a Cloud-based IoT measurement solution, enabling the seamless digitization and analysis of measurement data.
AIRTECH System Co. Ltd. (Taiwan), founded in 1990, is a manufacturer of cleanroom solutions based in Taiwan. The company is a joint venture with Japan AIRTECH Co. Ltd, a manufacturer of advanced air-conditioning systems and cleanroom equipment provider. The company primarily offers cleanroom technology and air filtration products, including air showers, clean booths, negative pressure isolation equipment, HEPA filters, and more. These products provide solutions for maintaining clean, sterile, and controlled environments in various industries, including healthcare, pharmaceuticals, laboratories, and manufacturing.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Teclock |
25.0%
|
| 2 | Green Millennium, Inc. |
19.1%
|
| 3 | Sunstar Engineering Americas, Inc. |
14.7%
|
| 4 | RENATECH Co., Ltd. |
13.2%
|
| 5 | Airtech System CO., LTD. |
10.3%
|
| 6 | Airtech Equipment Pte Ltd. |
8.8%
|
| 7 | Clean Venture 21 Corporation |
8.8%
|
Derivation Method
The ranking is calculated based on the click share within the photocatalytic deodorizing device page as of April 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Singapore
|
2 | 40.0% |
|
Japan
|
2 | 40.0% |
|
United States of America
|
1 | 20.0% |
39 products found
39 products
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