On the 8th, Wang Lei, an external expert from the China Consumer Product Quality and Safety Promotion Association, released the "2021 China Car Smell Research Report".

Photo courtesy of China Consumers Association

  China News Service, July 11 (Ge Cheng) Leather smell, foaming smell, solvent smell... Why are the tastes of new car interiors different?

What kind of interiors disgust consumers the most?

At the "2021 China Car Smell Research Achievement Sharing Conference" hosted by the China Consumer Product Quality and Safety Promotion Association (hereinafter referred to as "China Consumer Association") on July 8, experts gave answers.

  At the meeting, Wang Lei, an external expert from the China Consumer Product Quality and Safety Promotion Association, released the "2021 China Car Smell Research Report" (hereinafter referred to as the "Report").

The "Report" conducts market research and analysis based on the data of more than 3,100 car owners' complaints on the third-party platform accepted by the Defective Product Recall Center of the State Administration for Market Regulation in 2021.

  The survey results show that by the end of December 2021, the cumulative number of complaints about car odors in China reached 29,213, involving independent, joint venture and foreign brands, and

joint venture brands accounted for more than 80% of the complaints


  The data shows that from the perspective of odor sources, the

complaining car owners believe that the top three sources of odor in the car are seats, air conditioners and instrument panels

, accounting for 52.0%, 37.5% and 27.1% respectively, of which the seat material is mainly artificial leather. And leather, more than three-quarters of the complaining car owners believe that the odor mainly comes from one or two parts in the car, indicating that the source of the odor is highly concentrated; and from the time and scene of the odor in the car,

71.5% of the complaining car owners It is reported that there is odor when purchasing a car

. Therefore, the new car should be the key object of odor control.

  In addition, the survey results also show that car owners generally believe that the smell in the car has a greater impact on the health, mood and driving experience of drivers and passengers, accounting for 65.3%, 45.4% and 44.2% respectively, and more than half of the complaining car owners claimed to have "dizziness" , headache", "cough, throat discomfort" and "nausea, vomiting" and other symptoms.

  In the whole year of 2021, the China Consumers Association has completed the odor data collection of 24 models, carried out the analysis of the odor substance indicators and comprehensive odor indicators of the overall models for the above models, and conducted an in-depth analysis of the specific performance of 14 typical models.

  Among these models, from the analysis results of odor substances, the locked high-risk odor substances are mainly aromatic hydrocarbons, aldehydes, alcohols, ketones and other substances, and the concentration of odor substances emitted in the car increases significantly under high temperature conditions; Under the normal temperature test, 58% of the models had more than 4 high-risk odor substances; under the high temperature test, 46% of the models had more than 13 high-risk odor substances.

  By comparing the sensitizing odorant library established earlier, it can be found that formaldehyde, methyl methacrylate and 2-butanone oxime were detected under normal and high temperature conditions; under high temperature conditions, methyl methacrylate and 2-butanone oxime were all detected. The detection rate of butanone oxime was higher than that at room temperature. In addition, n-butyl acrylate, α-pinene and D-limonene were detected in some models.

  From the comprehensive analysis results of odor, in terms of objective odor level, under normal temperature detection, the average value is 3.5, and 13% of the models exceed 4.0; under high temperature detection, the average is 4.0, and 17 models exceed 4.5. %.

Under the two detection conditions,

the odor types with higher frequency were leather odor, foaming odor and solvent odor

, and

some car models appeared paint odor and other odor types that consumers were extremely disgusted with


It can be seen from the above analysis that some models still have a lot of room for improvement in terms of reducing the number of high-risk odor substances, reducing the objective intensity of odor, and improving the type of odor.

  The China Consumers Association said that in the next step, it will cooperate with other institutions to select commercially available models that are highly concerned by consumers, collect the odor data of the models, so as to obtain comprehensive odor data in the automotive industry, and communicate the results of odor data analysis with relevant companies in a timely manner. For models whose odor needs to be improved, actively discuss the source of odor problems with them, and jointly carry out odor improvement and improvement work if necessary.

(Zhongxin Finance)