Replacement Filters
105
Compatible filters for all major air purifier brands
Brands
89
From
$7
Avg Price
$38
Pro Tip
Replace filters every 6-12 months
Replacement Filter Buying Guide
Choosing the right replacement filter is essential for maintaining your air purifier's effectiveness. A dirty or incompatible filter can reduce performance by up to 50%. Our guide covers filter types, HEPA grades, compatibility, and replacement schedules to help you find the perfect filter.
Types of Filters
H HEPA Filter
Captures 99.97% of particles 0.3 microns or larger. Essential for allergies, dust, pollen, and pet dander.
C Carbon Filter
Absorbs odors, gases, and VOCs. Best for smoke, cooking smells, and chemical sensitivities.
P Pre-Filter
First line of defense for large particles. Often washable and reusable, extends main filter life.
HEPA Filter Grades
H14
99.995%
Medical Grade
H13
99.97%
Recommended
True HEPA
99.97%
= H13
HEPA-type
85-99%
Avoid
When to Replace
Recommended Schedule
- HEPA Filters: 6-12 months
- Carbon Filters: 3-6 months
- Pre-Filters: Wash monthly
- Combo Filters: 6-9 months
Signs You Need a New Filter
- • Reduced airflow from purifier
- • Musty odors from the unit
- • Filter indicator light is on
- • Visible discoloration/dust buildup
- • Increased allergy symptoms
Finding Compatible Filters
- 1. Check your air purifier's model number (on back/bottom of unit)
- 2. Find the original filter part number in your manual
- 3. Search by brand and model in the table below
- 4. Third-party filters are often 30-50% cheaper with same quality
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105 filters
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