Ozone safety testing for air purifiers

Views : 255
Author : Trustifiltor
Update time : 2022-12-26 13:39:01
How does an air purifier perform ozone safety testing?

The national mandatory standard GB4706.45-2008 "Special Requirements for Safety Air Purifiers for Household and Similar Electrical Appliances" clearly states in Section 32 "Radiation, Toxicity and Similar Hazards" that the concentration of ozone generated by the ionization device should not exceed the specified requirements. Compliance is checked by the following test.

The test is carried out in a closed room, the size of which is 2.5m×3.5m×3.0m. The room is kept at a temperature of 25°C and a relative humidity of about 50%, and the air purifier is energized at the rated voltage for 24 hours. If it is unfavorable to remove the filter, the filter should be removed.

The ozone sampling tube is set at a position 50mm away from the outlet of the air purifier. At the beginning of the test, the background ozone concentration is measured first, and then the background ozone concentration is subtracted from the maximum concentration measured in the test. The percentage of ozone concentration should not exceed 5×10-6. (Note, no more than 0.05ppm. About 0.1mg/m3)

At present, many air purifier manufacturers and testing institutions have not conducted ozone safety testing of air purifiers in accordance with the above-mentioned national mandatory standards.

US UL standard puts forward zero ozone requirements for air purifiers

UL is the abbreviation of Underwriter Laboratories Inc. UL Safety Testing Institute is the most authoritative institution in the United States and is also the institution engaged in safety testing and appraisal in the world. UL certification is an independent, for-profit professional organization that conducts tests for public safety. After nearly a hundred years of development, UL has become a world-renowned certification body. In 2019, the US UL standard put forward zero ozone requirements for air purifiers.

Related News
How to set the filter of oil fume purifier How to set the filter of oil fume purifier
Apr .24.2024
The core components of the oil fume purifier are the flue and the purifier. When the flue gas enters the flue, it will be initially filtered through the pre-filter to remove some larger particles and grease. Then, the flue gas enters the main purification area, where the high-concentration oil mist is adsorbed and decomposed by the high-voltage electric field. Afterwards, the purified air is discharged through the post-filter. So what are the functions of the pre-filter and post-filter of the oil fume purifier?
The role of ozone removal filter in air purifier The role of ozone removal filter in air purifier
Apr .19.2024
In an air purifier, the ozone removal filter is a very important component, so what role does it play?
First, the deozone filter can effectively absorb ozone gas generated by static electricity in the air. We know that ozone is a strong oxidant and has a strong ability to kill bacteria and viruses. However, if the ozone gas is not intercepted and adsorbed in time during the use of the air purifier, it will accumulate inside the air purifier, which will have a certain impact on the service life of the air purifier and the health of the user.
What are the industrial applications of oil fume removal filters What are the industrial applications of oil fume removal filters
Mar .28.2024
The oil fume filter uses mechanical or electrostatic adsorption to group and separate the oil fume exhaust gas, and electrically separates the oil fume particles to achieve the purpose of purifying the oil fume. It has a wide range of applications in the industrial field, mainly reflected in the following aspects:

1. Factory and kitchen oil fume purifier: In factories and large kitchens, the generation of oil fume is the most important. Industrial oil fume filters, as stronger oil fume purification equipment, can effectively remove these oil fumes and protect the environment and workers' health. This is very important for improving the working environment, maintaining employee health, and enhancing corporate image and competitiveness.
Industrial applications of ozone removal filters Industrial applications of ozone removal filters
Mar .28.2024
Ozone filter is a filter specially used to remove ozone. Its main application principle is to convert ozone into oxygen through a catalyst to purify the air. Ozone removal filters have the following industrial applications: ● Industrial waste gas treatment. A large amount of exhaust gas will be produced during industrial production, which may contain harmful gases such as ozone, so as to protect the environment and human health;
Contact us