Exact parts · Last checked July 20, 2026
Air Purifier Replacement Filters: Exact Codes for Core 400S-P, Core 600S-P and Airmega 250S
Exact official replacement-filter matches, expected intervals and compatibility cautions for three source-checked air purifiers.
Match the exact purifier model first, then choose the filter type. Core 400S-P and Core 600S-P filters are not interchangeable. Coway's Airmega 250 Max2 filter fits the 250, 250S and 250ART, but the washable pre-filter is a separate part.
Why this page exists
Match the suffix before the part.
Replacement filters are a separate search and ownership decision. A purifier can be the right initial add and still become the wrong long-term choice if its exact filter is hard to identify, expensive to replace or confused with a similar model.
This page stores only model-to-part compatibility and upkeep timing. Machine specifications remain in each canonical product record, so the same fact is not maintained twice.
Levoit Core 400S-P
Core 400S-PUse a filter explicitly labeled for Core 400S-P. Levoit offers an original three-stage filter plus specialized smoke, toxin and pet variants.
Open the canonical product record →General-purpose pre-filter, main filter and activated-carbon replacement.
Manufacturer source ↗Toxin Absorber replacement filterLRF-C401-P-GUSSpecialized activated-carbon option for smoke, fumes and vehicle/industrial pollution.
Manufacturer source ↗Pet Allergy replacement filterLRF-C401-YUSSpecialized filter option for fur, dander and pet odors.
Manufacturer source ↗Schedule
- Levoit publishes a typical 6–12 month interval for genuine filters.
- Replace earlier when heavy smoke, dust, pets or long daily run time loads the filter faster.
Do not mix up
- Do not substitute a Core 300 or Core 600S filter.
- Levoit says its filter-life algorithm is designed around genuine filters; a physical fit alone does not verify equivalent performance.
Levoit Core 600S-P
Core 600S-PThe 600S-P uses a physically larger, model-specific filter. Original, smoke, toxin and pet choices exist for different pollutant priorities.
Open the canonical product record →General-purpose pre-filter, main filter and activated-carbon replacement.
Manufacturer source ↗Toxin Absorber replacement filterLRF-C601-GUS / LRF-C601-P-GUSHigher-carbon option aimed at smoke, smog, fumes and VOCs.
Manufacturer source ↗Smoke Remover replacement filterCore 600S-P Smoke RemoverDual-sided pre-filter option aimed at ash and wildfire smoke.
Manufacturer source ↗Schedule
- Levoit publishes a 6–12 month expected life for the original and specialized filters.
- Check sooner during wildfire smoke events because ash and fine particles can load the filter rapidly.
Do not mix up
- Core 400S-P filter codes do not fit the 600S-P.
- A specialty smoke filter does not change the purifier's room-sizing requirement.
Coway Airmega 250S
Airmega 250SThe replaceable Max2 cartridge combines the HEPA and activated-carbon stages. The pull-out pre-filter is washable and separately replaceable.
Open the canonical product record →Combined HEPA and activated-carbon replacement for Airmega 250, 250S and 250ART.
Manufacturer source ↗Airmega 250 pre-filterAirmega 250 Pre-FilterWashable large-particle screen; separately replaceable if damaged.
Manufacturer source ↗Schedule
- Coway publishes a one-year life expectancy for the Max2 filter.
- Clean the washable pre-filter as loading becomes visible; the product's filter indicator helps track the replaceable Max2 stage.
Do not mix up
- The Max2 filter set contains one filter assembly for the 250/250S/250ART family.
- Do not discard the washable pre-filter during routine Max2 replacement unless it is damaged.
Compatibility standard
Manufacturer source or no match.
We publish a part code only when an official product, parts or manual page connects it to the exact machine. Prices and stock are intentionally omitted because no approved live-price system is connected.