In the automotive parts industry, the Cabin Air Filter, as a key component for improving the air quality inside vehicles, has attracted increasing attention from consumers and industry partners in recent years. When many people are choosing air conditioning filters, they will notice that different brands and types of air conditioning filters come in various colors such as white, black, gray, yellow and blue.
To help users gain a more comprehensive understanding of the product features of air conditioning filters, ETTV hereby releases this technical interpretation article.
The Source of the color of Air Conditioning Filters
The color of an air conditioning filter is not randomly determined but is formed by the type of material, functional coating or structural combination, mainly from the following three aspects:
The original color of raw materials
Non-woven fabric: White or light yellow
Meltblown fabric: White
Activated carbon: Black
The combination of different materials will directly affect the appearance color of the filter element.
Functional material coating
Some additives with special functions will present specific colors, for example:
Antibacterial agent → yellow, blue
Activated carbon layer → black
PM2.5 electrostatic layer → white or gray
Craft dyeing or marking
Some filter elements will be color-marked according to their functions, facilitating market identification and classification.
Although a completely unified color standard has not yet been formed within the industry, colors usually represent the following functional directions:
White: Basic filtering type
The white air conditioning filter element is mainly made of non-woven fabric and melt-blown fabric, and features:
Basic solid particle filtration
Pollen and dust interception
High cost performance and wide application range
Suitable for daily urban road usage scenarios.
Black: Activated carbon adsorption type
The black color comes from the activated carbon layer and has:
Remove odors
Adsorb harmful gases (formaldehyde, benzene, exhaust gas, etc.)
Enhance filtering capacity
It is suitable for environments with poor air quality or where air conditioners are frequently used.
Although color can serve as a reference for determining the functional direction, the quality of the filter element still depends on:
Material grade
Density of meltblown fabric
Iodine value of activated carbon
Filtration efficiency (such as PM2.5 filtration rate)
Service life
Process stability and sealing performance
In other words, color reflects function, but quality needs to be guaranteed by materials and craftsmanship.
The color system of ETTV air conditioning filter products
To meet the diverse market demands, ETTV offers a wide range of air conditioning filter products in various specifications and processes
Black activated carbon filter core: High-quality coconut shell activated carbon, with high adsorption performance
Grey mixed filter element: Composite structure, multiple functions in one element
Yellow antibacterial filter element: Effectively inhibits bacteria and mold
Blue high-efficiency antibacterial filter element: Enhance particulate matter filtration and health protection capabilities
Supports OEM/ODM customization of colors and packaging
Dongsen has always prioritized material quality and taken production technology as the core, providing stable and reliable filtration products for global users.
Qinghe County Dongsen Auto Parts Co., Ltd. is located in Qinghe County, Xingtai City, Hebei Province. It was established in 2024. Although the company was established a short time ago, it has more than 10 years of production experience. We are a manufacturer specializing in the production of air filters, air conditioning filters and oil filters. The filters produced by our factory serve the domestic and foreign markets and have won unanimous praise from customers in Southeast Asia, Africa, South America and other regions.
