Best Air Purifier Filters Under $50 (2026)
We ranked filters under $50 by a value score combining filtration type (HEPA/activated carbon), pack size, compatibility, and aggregated user ratings
Top Picks
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1
LEVOIT LV-H132 Replacement Filter
Genuine LV-H132 replacement filters with 3-stage filtration for air purifiers, reducing ultrafine particles and odors. Customers note easy installation and improved air quality
- genuine replacement filter
- 3-stage filtration
- high-density activated carbon
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2
FLT4825 HEPA Filter B Replacement for Guardian Air Purifier
Replacement HEPA filter with 6 pre-filters for Guardian air purifiers. Useful for improving air quality and ease of installation, with extra pre-filters and carbon covers included
- compatible with multiple Guardian models
- pet-friendly filtration
- includes pre-filters and carbon covers
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3
AROEVE replacement filter for MK01/MK06 (4-in-1) with activated carbon
Official replacement filter for MK01 and MK06 purifiers with 4-stage filtration. Improves air cleanliness by targeting dust, odors, and VOCs; customers report easy installation and effective odor removal
- official replacement filter
- 4-stage filtration
- fits MK01/MK06
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4
FLT4825 HEPA Filter B replacement for Guardian Air Purifiers
Replacement FLT4825 filter B for Guardian air purifiers.5 delivers air cleanliness and easy installation. customers report it fits well and enhances performance
- fits multiple Guardian air purifier models
- includes extra pre-filters
- positive fit and performance feedback
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5
AROEVE 4-in-1 Air Filter Replacement (2 Pack) for Pollen Pet Dander
4-in-1 air filter replacement for pet dander and pollen, designed to reduce dust and odors. Easy to install with a reliable fit, and valued for durability by customers
- 4-in-1 filtration
- pet dander and pollen targeted
- durable design
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6
FLT4825 HEPA Filter B Replacement with Activated Carbon Pre-Filters
"FLT4825" filter B replacement compatible with Guardian air purifiers. Improves air quality with pre-filters and carbon covers; easy to install and maintains filtration performance
- Compatible with multiple Guardian AC models
- Includes pre-filters and carbon covers
- Easy installation
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7
Levoit Core P350-P Replacement Filter
Genuine replacement filter for Core P350-P purifiers with 3-stage filtration and HEPA-like performance. Customers note odor removal, quiet operation, and easy replacement
- genuine replacement for peak performance
- HEPA-grade performance in Sleep Mode
- activated carbon for gases and odors
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8
GermGuardian Toxin Clear HEPA Replacement Filter
Genuine HEPA toxin filter designed to capture 99.97% of particles as small as 0.1 microns and reduce common VOCs. Customers note easy fit, installation, and improved air quality
- captures 0.1 micron particles
- reduces common VOCs
- easy installation and fit
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9
Nispira AER1 Filter for Holmes Air Purifier
Nispira AER1 filter compatible with Holmes aer1 total air purifiers. HEPA filtration captures up to 99.97% of particles as small as 0.3 microns. Customers note easy installation and good value for money
- HEPA filtration up to 99.97% (0.3 microns)
- 6-pack value option
- broad compatibility with Holmes units
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10
4 Pack HEPA Filter Replacement for AC4825 series
Set of 4 True HEPA filters with 6 activated carbon pre-filters compatible with multiple AC model air purifiers. Easy installation and durable performance noted by customers
- 4 true HEPA filters
- 6 activated carbon pre-filters
- broad model compatibility