Activated carbon deodorization equipment, also known as "air cleaner," air freshener, and purifier, refers to products that can absorb, decompose, or transform various air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde from construction pollution, allergens, etc.), enhancing air cleanliness. They are mainly categorized into residential, commercial, industrial, and building types.

Odor control equipment with activated carbon features a variety of technologies and mediums, ensuring clean and fresh air for users. Common air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalytic technology, superstructured photo-mineralization technology, HEPA filtration technology, and electrostatic dust collection technology; material technologies primarily consist of: photocatalysts, activated carbon, synthetic fibers, HEAP materials, and negative ion generators. The current activated carbon odor control equipment is often composite, utilizing multiple purification technologies and material mediums simultaneously.