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True HEPA Replacement Filter, Compatible with Alen BreatheSmart Flex and 45i Air Purifier, H13 Grade True HEPA, Plus 3 Replaceable Pre-Filters, Part # B4-Fresh (1-Pack)
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True HEPA Replacement Filter, Compatible with Alen BreatheSmart Flex and 45i Air Purifier, H13 Grade True HEPA, Plus 3 Replaceable Pre-Filters, Part # B4-Fresh (1-Pack)

Amazon Price History

This is our record of Amazon price changes for True HEPA Replacement Filter, Compatible with Alen BreatheSmart Flex and 45i Air Purifier, H13 Grade True HEPA, Plus 3 Replaceable Pre-Filters, Part # B4-Fresh (1-Pack) (B0BF4NSSFL) since we began monitoring it.

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Amazon (Jul 01, 2026) (Jul 01, 2026) 0,00 € (Jul 01, 2026)

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Jul 01, 2026 07:59 AM

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HEPA 13 Filter for Alen BreatheSmart Fit50, Replacement for Alen Air Purifier Filter Fit50, Allen BreatheSmart Air Purifier Fit50 & Alen BreatheSmart Filter
HEPA 13 Filter for Alen BreatheSmart Fit50, Replacement for Alen Air Purifier Filter Fit50, Allen BreatheSmart Air Purifier Fit50 & Alen BreatheSmart Filter
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45i True HEPA Replacement Filter Compatible with BreatheSmart Flex and 45i Air Purifier, 2 H13 True HEPA Filters with 2 Carbon Pre-Filters, B4-Pure Filter Part # B4-Fresh / FL40-Silver-Carbon, 2 Pack
45i True HEPA Replacement Filter Compatible with BreatheSmart Flex and 45i Air Purifier, 2 H13 True HEPA Filters with 2 Carbon Pre-Filters, B4-Pure Filter Part # B4-Fresh / FL40-Silver-Carbon, 2 Pack
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45I Replacement Filter Set Compatible with Alen Air Purifier Filter Replacement Breathesmart 45i or Flex, 3 Stages H13 True HEPA Air Cleaner, Part # B4-Fresh / FL40-Silver-Carbon Remove Odor, 1 set
45I Replacement Filter Set Compatible with Alen Air Purifier Filter Replacement Breathesmart 45i or Flex, 3 Stages H13 True HEPA Air Cleaner, Part # B4-Fresh / FL40-Silver-Carbon Remove Odor, 1 set
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Fette Filter -45i Premium True HEPA Replacement Filter, Compatible with Alen BreatheSmart Flex 45i Air Purifier Only, 3 Pre-Filter Replacements, Compare to Part # B4-Fresh & FL40-Silver-Carbon - Pack of 1+3
Fette Filter -45i Premium True HEPA Replacement Filter, Compatible with Alen BreatheSmart Flex 45i Air Purifier Only, 3 Pre-Filter Replacements, Compare to Part # B4-Fresh & FL40-Silver-Carbon - Pack of 1+3
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Flex 45i True HEPA Replacement Filter Compatible with BreatheSmart 45i or Flex Air Cleaner Purifier with 2 HEPA Filter and 2 Carbon Pre-Filter, Part # B4-Fresh
Flex 45i True HEPA Replacement Filter Compatible with BreatheSmart 45i or Flex Air Cleaner Purifier with 2 HEPA Filter and 2 Carbon Pre-Filter, Part # B4-Fresh
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Nispira True HEPA Filter Replacement Compatible with Alen BreatheSmart 45i or BreatheSmart Flex Air purifier. Compared to Part B4-Odor, 1 Pack
Nispira True HEPA Filter Replacement Compatible with Alen BreatheSmart 45i or BreatheSmart Flex Air purifier. Compared to Part B4-Odor, 1 Pack
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45i Replacement Filter for Breathesmart Flex Bh400 45i Air Purifier H13 Grade True Hepa Fresh Filter B4-Pure / Fl40
45i Replacement Filter for Breathesmart Flex Bh400 45i Air Purifier H13 Grade True Hepa Fresh Filter B4-Pure / Fl40
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PUREBURG Replacement True HEPA Filter Set Compatible with Alen BreatheSmart Air Purifier 45i / Flex,Part Number B4-Fresh / FL40-Silver-Carbon,H13 High-efficiency Activated carbon,2-Pack
PUREBURG Replacement True HEPA Filter Set Compatible with Alen BreatheSmart Air Purifier 45i / Flex,Part Number B4-Fresh / FL40-Silver-Carbon,H13 High-efficiency Activated carbon,2-Pack
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PUREBURG Replacement True HEPA Filter Set Compatible with Alen BreatheSmart Air Purifier 45i / Flex,Part Number B4-Fresh / FL40-Silver-Carbon, H13 4-Stage Filtration High-efficiency Activated Carbon
PUREBURG Replacement True HEPA Filter Set Compatible with Alen BreatheSmart Air Purifier 45i / Flex,Part Number B4-Fresh / FL40-Silver-Carbon, H13 4-Stage Filtration High-efficiency Activated Carbon
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Ture HEPA 45i Replacement Filter, Compatible with Alen BreatheSmart Flex &45 i air purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack HEPA Filter+4 Pre Filter
Ture HEPA 45i Replacement Filter, Compatible with Alen BreatheSmart Flex &45 i air purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack HEPA Filter+4 Pre Filter
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45i Filter Replacement Compatible with Alen BreatheSmart 45i or Flex Air Purifier 1 Pack Filter
45i Filter Replacement Compatible with Alen BreatheSmart 45i or Flex Air Purifier 1 Pack Filter
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HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters
HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters
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Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal
Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal
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Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter-Medical-Grade Air Filter-700-800 SqFt Coverage- 99.9% Airborne Particle Removal-Captures Allergens, Dust, Mold, Germs, VOCs, Household Odors
Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter-Medical-Grade Air Filter-700-800 SqFt Coverage- 99.9% Airborne Particle Removal-Captures Allergens, Dust, Mold, Germs, VOCs, Household Odors
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HEPA Filter Replacements for Alen Air Purifier Filter T500 and TF60-MP - 2 Pack - Compatible with Alen T500 Tower Air Purifier - Compatible with Alen Replacement Filter Model T500
HEPA Filter Replacements for Alen Air Purifier Filter T500 and TF60-MP - 2 Pack - Compatible with Alen T500 Tower Air Purifier - Compatible with Alen Replacement Filter Model T500
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[2 SETS] BF35 Filter Replacement Set Compatible with Alen Air Purifier Filter Replacement BF35 for BreatheSmart Classic H13 True HEPA Air Cleaner for Home and Large Room, Include 2 HEPA and 2 Pre-filter
[2 SETS] BF35 Filter Replacement Set Compatible with Alen Air Purifier Filter Replacement BF35 for BreatheSmart Classic H13 True HEPA Air Cleaner for Home and Large Room, Include 2 HEPA and 2 Pre-filter
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Alen BF35 Silver Carbon Air Purifier Replacement Filter for BreatheSmart Classic - True HEPA Filter for Air Purifier for Pet Odor, Fur, & Dander, Long-Lasting Pure Air Filter (1 Air Purifier Filter)
Alen BF35 Silver Carbon Air Purifier Replacement Filter for BreatheSmart Classic - True HEPA Filter for Air Purifier for Pet Odor, Fur, & Dander, Long-Lasting Pure Air Filter (1 Air Purifier Filter)
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Alen BF35 MP Air Purifier Replacement Filter for BreatheSmart Classic, True HEPA Filter for Air Purifier for Dust, Pollen, Odor & Small Particles, Long-Lasting Pure Air Filter (1 Air Purifier Filter)
Alen BF35 MP Air Purifier Replacement Filter for BreatheSmart Classic, True HEPA Filter for Air Purifier for Dust, Pollen, Odor & Small Particles, Long-Lasting Pure Air Filter (1 Air Purifier Filter)
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2-Pack Fit50 True HEPA Replacement Filter Compatible with A len FF50 for BreatheSmart Fit50 Purifier, 2×3-in-1 H13 True HEPA Filters + 2×Pre-Filters（Carbon & True HEPA Filter Version）
2-Pack Fit50 True HEPA Replacement Filter Compatible with A len FF50 for BreatheSmart Fit50 Purifier, 2×3-in-1 H13 True HEPA Filters + 2×Pre-Filters（Carbon & True HEPA Filter Version）
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Alen BreatheSmart 45i HEPA Air Purifier With Pure Filter, Captures Allergens, Dust, Mold, and Germs. Smart Home Essentials for Primary Bedrooms, Home Office, Home Gyms and other rooms up to 800 sq. Ft
Alen BreatheSmart 45i HEPA Air Purifier With Pure Filter, Captures Allergens, Dust, Mold, and Germs. Smart Home Essentials for Primary Bedrooms, Home Office, Home Gyms and other rooms up to 800 sq. Ft
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CPGSY H13 True HEPA Replacement Filters 2 Pack, Compatible with Fellow AeraMax 90/100 and AeraMax DX5/DB5 Air Purifier. Part# 9287001 and 9324001 Include 2 H13 True HEPA Filters & 6 Activated Carbon Pre-Filters
CPGSY H13 True HEPA Replacement Filters 2 Pack, Compatible with Fellow AeraMax 90/100 and AeraMax DX5/DB5 Air Purifier. Part# 9287001 and 9324001 Include 2 H13 True HEPA Filters & 6 Activated Carbon Pre-Filters
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Nispira True HEPA Filter Carbon Pre Filter Compatible with Alen BreatheSmart T500 Tower Air Purifier. Compared to Part TF60, 2 Packs
Nispira True HEPA Filter Carbon Pre Filter Compatible with Alen BreatheSmart T500 Tower Air Purifier. Compared to Part TF60, 2 Packs
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Upgraded H13 True HEPA Replacement Filters, Compatible with TOPPIN TPAP002 HEPA Air Purifier Comfy Air C1, 3-in-1 H13 Grade True HEPA Filter Set, Part# TPFF002 (2)
Upgraded H13 True HEPA Replacement Filters, Compatible with TOPPIN TPAP002 HEPA Air Purifier Comfy Air C1, 3-in-1 H13 Grade True HEPA Filter Set, Part# TPFF002 (2)
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Anycore For Purezone Air Purifier Replacement Filter 3-in-1 H13 True HEPA Filter Compatible with Pure Enrichment PureZone Air Purifier PEAIRPLG #PEAIRFIL, H13 Grade True HEPA Replacement Filter
Anycore For Purezone Air Purifier Replacement Filter 3-in-1 H13 True HEPA Filter Compatible with Pure Enrichment PureZone Air Purifier PEAIRPLG #PEAIRFIL, H13 Grade True HEPA Replacement Filter
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DonLeeving True HEPA Replacement Filter, H13 Replacement Filter for TaoTronics TT-AP001 Air Purifier and VAVA VA-EE014 Air Purifier, 3-in-1 RF H13 Grade True HEPA and Activated Carbon Filter(2 Packs)
DonLeeving True HEPA Replacement Filter, H13 Replacement Filter for TaoTronics TT-AP001 Air Purifier and VAVA VA-EE014 Air Purifier, 3-in-1 RF H13 Grade True HEPA and Activated Carbon Filter(2 Packs)
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Alen 75i BreatheSmart Filter-H13 Medical-Grade True HEPA Contaminants Replacement for Purifiers, Air Filter for Allergies and Odor, (White)
Alen 75i BreatheSmart Filter-H13 Medical-Grade True HEPA Contaminants Replacement for Purifiers, Air Filter for Allergies and Odor, (White)
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BS-03 True HEPA Replacement Filter for PARTU BS-03 Air Purifier Part U, Part X and Slevoo BS-03 HEPA Air Purifier, 3-in-1 filtration with H13 True HEPA Filter, Activated Carbon Filter, Pack of 2
BS-03 True HEPA Replacement Filter for PARTU BS-03 Air Purifier Part U, Part X and Slevoo BS-03 HEPA Air Purifier, 3-in-1 filtration with H13 True HEPA Filter, Activated Carbon Filter, Pack of 2
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Alen 75i BreatheSmart H13 True HEPA Replacement Filter - Medical-Grade Air Filter - 1,300 SqFt Coverage - 99.9% Airborne Particle Removal - Captures Allergens, Dust, Mold, Germs- Teal
Alen 75i BreatheSmart H13 True HEPA Replacement Filter - Medical-Grade Air Filter - 1,300 SqFt Coverage - 99.9% Airborne Particle Removal - Captures Allergens, Dust, Mold, Germs- Teal
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Alen 75i BreatheSmart H13 True HEPA Replacement Filter - Medical-Grade Air Filter- 1,300 SqFt Coverage - 99.9% Airborne Particle Removal Captures Allergens, Dust, Mold, Germs, Household Odors-Orange
Alen 75i BreatheSmart H13 True HEPA Replacement Filter - Medical-Grade Air Filter- 1,300 SqFt Coverage - 99.9% Airborne Particle Removal Captures Allergens, Dust, Mold, Germs, Household Odors-Orange
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Nispira BF35 HEPA Replacement Filter Compatible with Alen BreatheSmart Classic Air Purifier Part BF35 HEPA-Pure. 1 Pack
Nispira BF35 HEPA Replacement Filter Compatible with Alen BreatheSmart Classic Air Purifier Part BF35 HEPA-Pure. 1 Pack
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