The deodorizing system for the painting process at SD Woodentoy

The deodorizing system for the painting process at SD Woodentoy

Since 2020, SD Company has invested in and operated a modern and efficient exhaust gas treatment system for the painting process, ensuring the commitment to protecting workers' health and maintaining a safe working environment.


In the wood industry, managing and treating exhaust gases during the painting process is extremely important. The painting process of wooden products often emits various harmful gases, such as paint fumes and dust, which significantly affect the environment and human health. If these emissions are not properly treated, they can lead to air pollution, cause respiratory diseases among workers, and negatively impact the surrounding environment.

According to regulations on exhaust gas treatment in the wood industry, companies must ensure effective exhaust gas treatment measures before releasing them into the environment. This not only helps comply with legal regulations but also protects workers' health and creates a safer working environment.

SD Company is committed to protecting workers' health and ensuring a safe working environment by investing in and operating a modern and efficient deodorizing system.

Information about the Exhaust Gas Treatment System

The company’s deodorizing system system has been in operation since 2020. Since then, the system has been operating stably and effectively, meeting the requirements for exhaust gas treatment during the painting process of products.

Specifically, in the latest Workplace Environment Monitoring Report (March 2023) conducted by the Tien Giang Center for Disease Control, the evaluation of toxic fumes according to QCVN 03:2019/BYT was passed with 100% of the samples meeting the requirements.

Technology and Treatment Process

Technology Used: The company uses a water curtain spray booth technology combined with an activated carbon paint odor filtration system. This is one of the advanced technologies that help effectively treat exhaust gases.

Treatment Process: The deodorizing system process includes three main steps:

  1. Collection: Paint dust generated during the spray painting process is collected by the industrial fan system and brought into the water curtain.
  2. Dust Filtering: The paint dust contacts the water curtain and is retained. Under the influence of the negative pressure created by the centrifugal fan, the paint fumes are not blown back towards the painter but follow the airflow created by the fan and are directed through the duct system to the activated carbon treatment chamber.
  3. Treatment: The paint fumes pass through the activated carbon layer, which absorbs and retains them. The air, after being filtered of dust and paint fumes, exits through the exhaust duct system, ensuring that the emissions released into the environment meet the standards.

Quality Assessment and Inspection

Monitoring System: The company uses modern equipment and technology to monitor the effectiveness of the deodorizing system. Sensors and automatic control systems help detect and timely adjust any abnormalities during the exhaust gas treatment process.

Periodic Inspection: The routine inspection and maintenance process includes:

  • Daily: Check the current intensity, voltage, and motor casing temperature.
  • Weekly: Check for foreign objects and the color of the activated carbon on the trays.
  • Monthly: Replace the activated carbon to ensure the effectiveness of exhaust gas filtration.


Protecting Workers' Health: The deodorizing system helps minimize the risk of respiratory diseases for workers, protecting their health and ensuring a safer working environment.

Improving the Working Environment: Using a modern deodorizing system helps create a cleaner, more ventilated, and comfortable working environment for workers.


The deodorizing system for the painting process of SD Company brings many practical benefits, from protecting workers' health to improving the working environment. The company reaffirms its commitment to protecting workers' health and the environment.

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