How often should I replace a HEPA filter?

Every 6 to 12 months in normal conditions. After a wildfire smoke event, replace immediately — a saturated filter performs worse than a clean pre-filter.

Is "HEPA-type" the same as True HEPA?

No. Only True HEPA (H13 or H14) captures ≥99.97% of 0.3 μm particles. "HEPA-type" or "HEPA-like" are marketing terms with no standard.

Can I wash and reuse a HEPA filter?

No. Washing damages the pleated fiber matrix. Vacuum the pre-filter if your unit has one, but replace the HEPA itself.

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Replacement HEPA Filters for Air Purifiers

HEPA filters are consumables — most units need a fresh one every 6–12 months, and much sooner after wildfire smoke events. Replace before capture drops so your clean room stays clean.

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Frequently asked

How often should I replace a HEPA filter?: Every 6 to 12 months in normal conditions. After a wildfire smoke event, replace immediately — a saturated filter performs worse than a clean pre-filter.
Is "HEPA-type" the same as True HEPA?: No. Only True HEPA (H13 or H14) captures ≥99.97% of 0.3 μm particles. "HEPA-type" or "HEPA-like" are marketing terms with no standard.
Can I wash and reuse a HEPA filter?: No. Washing damages the pleated fiber matrix. Vacuum the pre-filter if your unit has one, but replace the HEPA itself.