How Often Should You Replace Air Purifier Filters? (Real-Life Timelines)
How often should you replace air purifier filters? Most homes should plan on replacing the main HEPA/HEPA-grade filter every 6–12 months… but that range is useless unless you factor in pets, smoke, and how hard you run the purifier. AHAM’s consumer guidance puts typical replacement in that 6–12 month window, while EPA’s guidance is simple: … Read more