GermGuardian Showdown: HEPA Filter Purifies Wildfire Smoke, Tested for AC4880...Seasonal Buyer’s Insight We’ve tested air purifiers in our homes, especially during wildfire season, and the GermGuardian Filter B HEPA has impressively removed 99.97% of pollutants, including wildfire smoke and odors. Designed for models like the AC4880, AC4900, and others, it’s clear this filter is a reliable choice. The HEPA technology works silently yet effectively, maintaining our indoor air quality without unnecessary fanfare. We appreciate that it specifically targets harmful particles, making it a smart investment for those in affected regions. With five replacement filters ensuring longevity, it fits seamlessly into our routine. Our air feels cleaner, and we’re glad GermGuardian stands by its promise. For seasonal buyers, this filter offers practical peace of mind during volatile air quality events.