Is the Levoit Core 400S-P worth it?
Room air purifier · suggested up to 358 sq ft · HEPA + activated carbon
Levoit Core 400S-P on Amazon · $189.97 →Sold by Amazon.com.
Yes, for a bedroom, dorm room or living room up to 358 sq ft. It costs $189.97, its genuine filter $49.98 a year, and it runs on 41.6 W.
Levoit Core 400S-P review
The short answer
Yes. The Levoit Core 400S-P is a good buy for a room up to 358 sq ft. AHAM certifies it at 231 CFM of smoke clearing, it is ENERGY STAR, and Amazon.com sold it for $189.97 on November 4, 2026. Its genuine filter is $49.98 and Levoit says to replace it every 12 months. The Coway Airmega 200M costs $19 more up front, but over two years the Core 400S-P costs about $148 less to own ($377 vs $525) because it draws half the power. The catch with the 200M: its numbers are Coway's own, and it has an ionizer.
- Levoit Core 400S-P on Amazon · $189.97 Sold by Amazon.com
- Genuine Core 400S-P filter · $49.98 Levoit says replace every 12 months
- Coway Airmega 200M · $209.29 Costs less up front; draws 82 W
Prices on Amazon on the review date; they change often.
For a dorm room: the Core 400S-P vs the Coway Airmega 200M, side by side →
Which to buy: the Core 400S vs the Vital 200S, side by side →
At a glance
Who it's for
A bedroom, dorm room or small living room up to about 358 sq ft. It has an app and a PM2.5 sensor.
The standout number
231 smoke CADR on 41.6 W: about $69 a year of power running all day.
The catch
The filter is $49.98 a year. Levoit lists it at 24 to 52 dB, so high speed is about as loud as a normal conversation.
The spec label — AHAM's published ratings
ENERGY STAR listed
US market
Clean Air Delivery Rate (CADR) — source: AHAM
Coverage & power — source: AHAM (+ computed)
Filter & identity
The Core 400S-P vs the Coway Airmega 200M, Vital 200S and Core 300S
Levoit rows are AHAM-certified. The Coway row uses Coway's own figures (cowaymega.com, read November 4, 2026); Coway does not list its purifiers in AHAM's directory. Quietest setting is the maker's figure. Filter cost is the genuine filter on Amazon, changed on the maker's schedule (Core 400S-P and Coway every 12 months, Vital every 9, Core 300S every 7). Power cost is running all day on the smoke-test speed (Coway: its rated power) at 18.83¢ per kWh. Two-year cost = Amazon price + filters you'd buy + two years of power. Amazon prices on November 4, 2026.
| Unit | Smoke CADR | Room (sq ft) | Quietest (dB) | Filter / yr | Power / yr | 2-year cost | Where |
|---|---|---|---|---|---|---|---|
| Levoit Core 400S-PThis page; AHAM-certified | 231 | 358 | 24 | $50 | $69 | $377 | $189.97 on Amazon |
| Coway Airmega 200MCoway's figures; same filter as the Mighty | 246 | 361 | 24.4 | $45 | $135 | $525 | $209.29 on Amazon |
| Levoit Vital 200SSame size room; pet mode | 250 | 388 | 23 | $67 | $86 | $463 | $189.99 on Amazon |
| Levoit Core 300SSmaller room; app control | 141 | 219 | 22 | $45 | $65 | $358 | $149.99 on Amazon |
The Core 400S-P and the 200M clean about the same size room. The 200M draws 82 W, about $67 a year more power, so the Core 400S-P is cheaper to own over two years. The Vital 200S is certified for a slightly bigger room (388 sq ft) but draws 52.4 W and is not ENERGY STAR.
Sources: AHAM Verifide directory: Levoit Core 400S, Vital 200S-P, Core 300S (read October 23, 2026) · Levoit: Core 400S-P product page · Levoit: Core 400S-P user manual (US) · Coway: Airmega 200M product page · Amazon listing: LEVOIT Smart Air Purifiers for Home Large Room Up to 1718 Ft² Core 400S-P | HEPA Sleep Mod · Amazon listing: Levoit Core 400S-P Air Purifier Replacement Filter,Genuine Air Filter,1Pack | AHAM VERIFID · Amazon listing: COWAY Air Purifiers for Home Up to 1,748 ft², HEPA Filter for Smoke, Allergies, Pet Dander · Amazon listing: LEVOIT Smart Air Purifier for Home Large Room up to 1875 Ft² Vital 200S-P | For Quiet Bedr
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Frequently asked questions
Is the Levoit Core 400S-P worth it?
Yes, for a room up to 358 sq ft. AHAM certifies 231 smoke CADR, it is ENERGY STAR, and it cost $189.97 on November 4, 2026. Its filter is $49.98 and lasts a year.
Levoit Core 400S-P vs Coway Airmega 200M: which is better for a dorm room?
They clean about the same size room: 358 sq ft (AHAM) vs 361 sq ft (Coway's figure). The Core 400S-P draws 41.6 W, the 200M 82 W, so the Levoit saves about $67 a year if it runs all day. The Levoit is a tall cylinder with an app; the 200M is a wider box (16.8 in) with buttons and no app. The Coway Airmega 200M costs $19 more up front, but over two years the Core 400S-P costs about $148 less to own ($377 vs $525) because it draws half the power. For a small dorm room either is plenty.
What size room does the Levoit Core 400S-P cover?
AHAM certifies it for 358 sq ft, cleaning the air about 4.8 times an hour on high. The "1,718 sq ft" on the box is a room it cleans once an hour. In a 200 sq ft dorm room with an 8 ft ceiling it cleans the air about 9 times an hour on high (our math).
How often do you change the Levoit Core 400S-P filter, and what does it cost?
Levoit's manual says: "The filter should be replaced every 12 months. You may need to replace your filter earlier or later depending on how often you use your air purifier." Vacuum the pre-filter every 2 to 4 weeks. The genuine filter was $49.98 on Amazon on November 4, 2026, so that is your yearly cost.
How loud is the Levoit Core 400S-P?
Levoit's manual lists 24 to 52 dB (its product page says 22 to 52). Sleep mode is a whisper; high speed, the speed AHAM's room size assumes, is about as loud as a normal conversation.
How do you reset the filter light on the Levoit Core 400S-P?
Levoit's manual says: put in the new filter, turn the purifier on, then press and hold the Check Filter Indicator Reset button for 3 seconds. The light turns off when it is reset. If you changed the filter before the light came on, press and hold the same button for 3 seconds anyway; the light flashes, then resets.
Is the Core 400S the same as the Core 400S-P?
Yes. Levoit's Core 400S-P page lists "Model : Core 400S" with 231 CFM, and the Amazon listing's model field says Core 400S. That matches AHAM's Core 400S certificate (231 smoke CADR, 358 sq ft). AHAM also lists a certificate named LAP-C401S (Core 400S-P) at 234 CFM; the two are within a few CFM.
Levoit Core 400S-P vs Vital 200S: which should I buy?
They cover about the same room (358 vs 388 sq ft certified). The Core 400S-P is ENERGY STAR and draws 41.6 W instead of 52.4 W. The Vital 200S has a pet mode and a washable pre-filter, and cost $189.99 on November 4, 2026.
Does the Levoit Core 400S-P have an ionizer?
No. Levoit lists a 3-stage filter (pre-filter, HEPA filter and activated carbon) and no ionizer. The Coway Airmega 200M has an ionizer you can switch off.
Sources. CADR, room size, power and ENERGY STAR status come from the AHAM Verifide directory record "Core 400S" (read October 23, 2026), which matches Levoit's Core 400S-P page and the Amazon listing's model field. Noise, filter schedule and the reset steps are Levoit's, from its manual. Average CADR, air changes and clean air per watt are computed by Verified HVAC Data. We publish no star ratings and take no payment for placement.
Levoit Core 400S-P on Amazon · $189.97 → See how it ranks against every purifier