How to Change a HEPA Filter
HEPA (high-efficiency particulate air) filters are common in household air purifiers and vacuum cleaners. It is recommended that home air filters should be changed every 12 to 24 months. HEPA filters trap approximately 99.97 percent of airborne particles, making them an excellent option for improving indoor air quality and reducing allergy symptoms. To learn how to change your HEPA filter, check out the following instructions.