HE401 Replacement Filter For Air Purifier 4 Series Top Pick Upgrade With High Efficiency Filtration 99.97 Percent 0.3 Micron Part HE4FKPET Compatible With HE401 HE402 HE405 HE400 Models
✔️ 99.97% filtration at 0.3 µm, 3-stage (pre-filter, carbon, HE)
This replacement filter is designed for 4-series air purifiers and delivers high-efficiency filtration to capture dust, pollen, pet dander, and odors. It is a straightforward, tool-free swap that takes under a minute and helps keep your space smelling fresh and clean. Compatible with HE401, HE402, HE405, and HE400 models as noted in the product details.
✅ 99.97% filtration efficiency at 0.3 microns
✅ 3-stage filtration: pre-filter, activated carbon, high-efficiency filtration
✅ Quick, tool-free installation in under a minute
✅ 1 pack replacement for HE400 series (HE4FKPET)
✅ 30% lower cost than original filters for cost-effective replacement
💡 What is a replacement filter for air purifiers used for in homes and offices?
Replacement filters help keep indoor air clean by trapping common pollutants and odors. Handy for maintaining purifier performance over time.
* Helps capture dust, pollen, pet dander* Improves overall air quality by removing odors and irritants
* Easy to swap during routine maintenance