Air Purifiers · Head-to-head

Levoit Core 400S-P vs Levoit EverestAir-P

Levoit Core 400S-P
Best for Litter-Box Odor

Levoit Core 400S-P

7.5/10
$189.97 at Amazon
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Levoit EverestAir-P
Best for Large Rooms

Levoit EverestAir-P

7.8/10
$499.99 at Amazon
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The short answer

Levoit EverestAir-P comes out ahead overall with 7.8/10 against 7.5/10 for the Levoit Core 400S-P. Levoit Core 400S-P is stronger on value. Levoit EverestAir-P is stronger on cleaning performance for bedroom size, sleep-friendly features, indoor-air safety & materials and running cost & ownership. At current verified prices, the Levoit Core 400S-P costs about $310.02 less.

Scores by criterion

CriterionLevoit Core 400S-PLevoit EverestAir-P
Noise at sleep-usable speeds 7.8134 cfm PM1 under 45 dBA and 35.5 dBA in sleep (HouseFresh). Loud at top speed (60.3 dBA). 8.0205 cfm PM1 at 45 dBA or below, the best in the pool; 39.1 dBA lowest speed.
Cleaning performance for bedroom size 7.8249 cfm PM1. Odor capability depends on the 450 g Smoke Remover filter. 9.0375 cfm PM1 at top; 400 g pelleted carbon.
Sleep-friendly features 8.0Laser sensor, auto mode, sleep mode and app. 8.3Sleep mode, auto mode, app, oscillating vents.
Indoor-air safety & materials 7.5No ionizer, Energy Star and CARB listed. Covered by the HEPA-labeling settlement. 8.0No ionizer; no HEPA claim.
Running cost & ownership 5.5The $64.99 Smoke Remover filter about every 6 months is pricey. 7.0$99.99 filter every 12–15 months; up to 70 W.
Value 7.0About $255 with the odor filter, roughly the Mighty2's price. 5.8$499.99 is costly, but it is the only buyable large-carbon option.

Specifications

SpecLevoit Core 400S-PLevoit EverestAir-P
Exact model / SKU Core 400S-P LAP-EL551S-AUS
Workflow type Cylindrical 360° room purifier: pre-filter + H13-labeled HEPA + carbon Large Room
Lowest-speed noise (manufacturer) 22 dB 24 dB
Independent PM1 CADR at maximum 249 CFM 351 CFM
Top-speed noise (manufacturer) 52 dB 56 dB
Independent PM1 CADR at low-noise setting 134 CFM 170 CFM
Lowest-speed noise (independent measurement) 35.5 dBA 39.1 dBA
Quiet-test threshold HouseFresh: fastest speed under 45 dBA at 3 ft ≤45 dBA
CADR (smoke where given, else headline) 231 cfm 354 cfm
Measured noise range 35.5 (sleep)–60.3 (HouseFresh) 31.8–58.6 dBA
Recommended room size (4.8–5 ACH / AHAM) 358 sq ft 549 sq ft
AHAM-certified smoke CADR — 354 CFM
Max power draw 38 W 70 W
Ionization/electronic stage present No No
Sleep / night mode Yes Yes
App control Yes Yes
Model-specific ozone/technology disclosure — No ionizer (HouseFresh)
Ionizer / electrostatic stage — None
Particle-filter construction/certification — 3-stage system with a statically charged-fiber main filter
Filter type 3-stage; Pet Allergy, Toxin Absorber, Smoke Remover (HEACAFLVNUS0081A, $64.99) options Washable pre-filter + particle filter + pelleted carbon
Carbon-media format Pelleted carbon; 450 g in Smoke Remover filter (HouseFresh) Pellet-based activated carbon
Main filter life 6 months 15 months
OEM replacement-filter price 49.99 USD 99.99 USD
Manufacturer direct/list price 219.99 USD 499.99 USD
Dated US street price — 379.99 USD
Washable / removable pet pre-filter — Yes
Pet-hair pre-filter / intake design Fabric pre-filter wrapped on cylinder Washable pre-filter
Activated carbon amount (where disclosed) — ~400 g pelleted (HouseFresh)
Activated carbon amount (where disclosed) 450 g (Smoke Remover filter, HouseFresh) 400 g (HouseFresh)

Levoit Core 400S-P

Pros

  • Strong odor carbon with the Smoke Remover filter
  • Quiet auto cleaning with a laser sensor
  • 35.5 dBA in sleep
  • App control
  • No ionizer

Cons

  • Odor setup costs about $255 in total
  • Noisy at top speed, 60.3 dBA
  • Filters need replacing about every 6 months

The best mainstream choice for cat owners who want real odor control and quiet nights, provided you budget for the upgraded filter.

Full Levoit Core 400S-P review →

Levoit EverestAir-P

Pros

  • Large-room buyer fit
  • Exact-model evidence from distinct publisher groups
  • Source-bounded lower-noise delivery evidence

Cons

  • Quiet-setting evidence is not cross-publisher comparable
  • Current ownership conditions are not assessed here

Recommended for large-room buyers who place particular weight on the lower-noise delivery evidence reported by RTINGS.

Full Levoit EverestAir-P review →

Both products are part of our guide The Best Air Purifiers for Pet Dander and Odor of 2026, where you can see every pick, how we score and current prices from each retailer.