The core difference between activated carbon filter cotton and standard filter cotton lies in their material composition and primary functions: Activated carbon filter cotton achieves chemical adsorption through the addition of activated carbon components, primarily used to remove gaseous pollutants and odors; whereas standard filter cotton (such as non-woven fabric) relies on physical interception to filter particulate matter.

The following details their differences across multiple dimensions:

Materials and Filtration Principles:

1. Activated Carbon Filter Cotton: Uses powdered activated carbon as the adsorbent material, bonded to a fiber matrix via polymeric binders. It utilizes the porous structure of activated carbon to adsorb harmful gases (e.g., formaldehyde, benzene) and odor substances, constituting a chemical adsorption process.

2. Standard Filter Cotton: Typically made from synthetic fibers (e.g., polyester) or glass fibers, it filters airborne particles like dust and pollen through physical interception, constituting physical filtration.

Functionality and Applications:

1. Activated Carbon Filter Cotton:

Strengths: Removes odors, organic pollutants (e.g., VOCs), and certain chemical gases. Suitable for scenarios requiring chemical purification, such as air purifiers, spray booths, and industrial exhaust treatment.

Limitations: Low filtration efficiency for particulate matter; typically requires use with primary or medium-efficiency filters.

2. Standard Filter Cotton:

Strengths: Efficiently intercepts large particles (e.g., dust, hair), commonly used as pre-filters in HVAC systems and ventilation equipment or for dust control in surface coating industries.

Limitations: Cannot adsorb gaseous pollutants; ineffective against odors and chemicals.

Performance and Maintenance:

Filter Lifespan: Activated carbon filters require periodic replacement (typically every 3-6 months) due to adsorption saturation, otherwise bacterial growth may occur; standard filters can be washed or replaced, offering relatively longer service life.

Air Resistance and Cost: Activated carbon filters exhibit slightly higher air resistance and higher cost due to the added activated carbon layer; standard filters feature low air resistance and economical pricing.

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