Best deal: $1.95 per count (83.0% below the median) — Colorfullife 4 True HEPA + 8 Pre-Filter Aer1 Filter Replacement Com...
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Colorfullife 4 True HEPA + 8 Pre-Filter Aer1 Filter Replacement Compatible With Holmes AER1 Air Purifiers, Replacement Parts # HAPF30AT, HAPF300AH-U4R, HAP242-NUC
Colorfullife Aer1 Filter Replacement for Holmes Air Purifiers AER1 Type Total Air Filter Replacement Filters for HAPF30AT and HAP242-NUC, 2 True HEPA Filters + 4 Carbon Booster Filters
TRIGHTFILTERS 12x12x1 Air Filter 6 Pack, Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Lightweight Compact Air Conditioner Filter Replacement
Amazon Basics 14x20x1 Air Filter 6 Pack, MERV 8 AC Furnace Filters (Actual Size: 13.75" x 19.75" x 0.75")
HPA300 HEPA Air Purifier Filter R for Honeywell Air Purifier HPA100/200/300 and 5000 Series, 6 Pack HEPA Filter Compatible with Honeywell R Filter (HRF-R3 & HRF-R2 & HRF-R1)
Aerostar 12x12x1 MERV 8 - 4 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen
4 Pack LV-H128 Replacement Filter Compatible with LEVOIT LV-H128 / PUURVSAS (HM669A) / ROVACS (RV60) Air Purifiers, 3-IN-1 Filter for LV-H128-RF Replacement Filter