Replacement-filter costs compared

Original filters on one basis

Arithmetic uses filter price × 12 ÷ months between replacements, rounded to cents. The Core 600S annual figure stays unknown because the cited manufacturer page gives usage-dependent guidance without a fixed interval.

The assumptions matter more than the decimals

Levoit Core 300S-P: the original filter page recommends replacement every six to eight months. Vital 200S-P: its filter page says six to twelve months and explicitly allows earlier or later replacement according to use and environment. These annual figures are ranges, not promises.

Levoit Core 600S-P: its filter page says replacement may be earlier or later depending on use and pollution but does not publish a fixed number of months. The Home Briefing does not convert that statement into a made-up annual cost.

Blueair 311i Max: Blueair says the filter lasts up to nine months and that its RealTrack calculation depends on fan speed, usage time and pollution. “Up to” is a ceiling under its stated method, so $59.99 is an illustration at exactly nine months, not a maximum annual cost.

Annualized figures describe ongoing replacement consumption, not first-year cash spending; a filter included with the purifier can change when the first paid replacement is needed.

If a filter lasts less time in your home, yearly cost rises. A filter indicator helps with timing but does not make intervals identical between brands.

What was included

The comparison uses each brand's everyday original particle-and-carbon option, one filter at a time. It excludes Blueair's 15% subscription price and its higher-priced AllergenBlock and SmokeBlock choices. It also excludes marketplace-compatible filters because construction, claims and availability can differ.

Before purchase, confirm the filter model, pack count and current checkout terms. Similar purifier names do not guarantee filter compatibility.

Core 300 compatibility discrepancy: the linked filter page's summary names Core 300S-P, but its “compatible with only” list omits it. The purifier page links that filter. Ask Levoit to confirm the exact filter SKU for your unit before ordering. Check the conflicting listing.

Manufacturer sources

• Levoit Core 300-series original filter
• Levoit Vital 200S replacement filter
• Levoit Core 600S-P original replacement filter
• Blueair Blue Pure 311i Max filter price and interval

Additional purifier choices: what remains unknown

Added 18 October 2026. The September price table above remains a dated comparison; these additional models do not have a verified like-for-like annual filter-cost figure in this guide. A low purifier price alone does not establish low ownership cost.

Calculate price × 12 ÷ assumed months only when the compatible filter price and interval basis are both established. Do not compare a subscription discount with a one-time price as if their commitments were identical. An included filter changes first-year cash timing.

Affiliate links: The Home Briefing may earn a commission from a qualifying purchase, at no extra cost to you. These links select purifiers, not replacement filters. Check ongoing filter costs separately.

Sources: PuroAir100i, PuroAir130i, Austin Plus, Austin Plus Junior. Direct untracked manufacturer links. No hands-on filter-life or health result is claimed.

A DIFFERENT FILTER FORMAT

Replacement media for existing AprilAire cabinets

New offers checked 23 October 2026 · Existing room-purifier prices above retain their original dates.

These three filters belong in compatible whole-home HVAC cabinets. Match the required part number before comparing MERV or price; these serve whole-home cabinets rather than standalone room purifiers. A 213 is a different cabinet family from a 410 or 413.