An air purifier filter is a component that removes airborne particles like dust, pollen, smoke, and odors, with the most common types being HEPA (High-Efficiency Particulate Air) and activated carbon filters. Filters need periodic replacement, as the frequency depends on usage and air quality, with many manufacturers recommending replacement every 12 months, though some filters need more frequent changes (e.g., pre-filters). It is important to use the correct, often genuine, filter for your model to ensure optimal performance and to prevent strain on the air purifier’s motor.
HEPA: High Efficiency Particulate Air filters are a standard for performance, with True HEPA being the most common and effective for residential use.
Efficiency: Captures 99.97% of particles down to 0.3 microns in size.
Higher grades: Medical-grade filters can have even higher efficiency, capturing smaller particles.
Activated Carbon: Absorbs gases, odors, and fumes.
Pre-filter: Catches larger particles like dust and hair, protecting the other filters and extending their life.