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Symptoms and causes of failures of an air conditioning filter

09-15,2025

Failure symptoms:

Dirty filter element: Large amounts of dust, pollen, and particulates accumulate on the surface of the filter element. They are visible or feel dirty.

Odors from the air conditioner: The filter element becomes less efficient during filtering, and consequently accumulated dirt, mold, and musty smell enter the car via the air conditioning system, generating unpleasant odors.

Reduced air output: Filter element blockage leads to higher airflow resistance, results in a significant decrease in air volume, and decreases cooling/heating efficiency.

Failure causes:

Blockage prevents air from flowing smoothly: Dust, pollen, and small particulates accumulate on the filter element over time, reducing the cross section area of the air passage and causing a decrease in air flow.

Increased risk of water accumulation and mold growth: The humid environment around the filter element can easily give birth to bacteria and molds, generate odors, and may cause health problems.

Pressure changes in the air conditioning system: Blockage can change the pressure distribution of the system, and consequently reduce refrigerant circulation efficiency and indirectly affect the outlet air temperature and passenger comfort.

vika antibacterial and anti-allergic air conditioning filter provides eight functions that guarantees clean environment and healthy breathing.

vika air conditioning filter

Prevent allergy;

Prevent molds;

Prevent bacteria;

Filter PM2.5 particulates;

Filter unpleasant gases;

Filter harmful gases such as exhaust;

Filter fine particles;

Protect air conditioner.