All filter-based air purifiers require air filter replacements. Depending on your brand or model, the frequency of filter replacements will vary, but the standard is every six months. Depending on the frequency the air purifier is run, filter changes may need to be replaced sooner. Replacing the air filter frequently is essential to ensure optimal performance of the air purifier. Regular filter replacements help to achieve maximum air filtration and will extend the life of your air purifier.
HEPA replacement air filters are high-efficiency air filters that remove up to 99.97% of airborne particles down to 0.3 micrometers in diameter. Filter-based air purifiers trap airborne particles such as dust mites, pollen, pet dander, and mold spores, and collect the particles in its filter. Replacing the air filter frequently will help increase the air flow and lower the air resistance of the filter, allowing for optimal particle removal.
Signs that your air filter needs replacement include: bad odor or smell from the unit, increased signs of dust on furniture or increase sneezing or coughing due to allergies.