SpecsDuel
ComparisonLast checked October 10, 2026

Levoit Core 300S vs Coway AP-1512HH: which room size

The short answer. The Levoit Core 300S is best for rooms under 220 square feet, a $150 budget and app control. The Coway Airmega AP-1512HH Mighty is best for rooms of 250 to 360 square feet, a printed filter schedule and a three-year motor warranty. Winner on the full sheet: the Coway, because it publishes three CADR figures that are 65 to 105 CFM higher and covers 142 more square feet at 4.8 air changes an hour. The Levoit wins the power, weight, noise floor and price rows. This duel is a documentation review: every figure comes from levoit.com and cowaymega.com pages checked October 10, 2026. No lab tests, no sponsored rows.

Levoit Core 300S logo3.9Levoit Core 300S
Coway Airmega AP-1512HH Mighty logo4.0Coway Airmega AP-1512HH Mighty
Winner

Row by row: the Coway wins airflow, the Levoit wins everything that plugs in

Every row below is Levoit first, Coway second, then the difference. Figures are from the levoit.com and cowaymega.com product pages, the Coway filter set page and the Coway warranty table, all checked October 10, 2026. Where a maker does not print a figure, the row says not published and the difference is left blank.

Levoit Core 300S and Coway Airmega AP-1512HH Mighty side by side on the Specs Duel rubric. Scores come from documentation and verified user reports.
Levoit Core 300S and Coway Airmega AP-1512HH Mighty side by side on the Specs Duel rubric. Scores come from documentation and verified user reports.

Airflow: the Coway moves 65 percent more air and says so three times

The Coway AP-1512HH publishes 233 CFM for smoke, 246 for dust and 240 for pollen. The Levoit Core 300S publishes one figure, 141 CFM, with no pollutant split. On the only like-for-like row, smoke, the Coway is 92 CFM ahead, about 65 percent more airflow.

Room size follows. At 4.8 air changes an hour, the rate usually quoted for allergy relief, the Coway covers 361 square feet and the Levoit 219. At one air change an hour the figures are 1,748 and 1,051. Both makers print the big number; both small numbers are the ones to plan around.

The gap in documentation matters as much as the gap in airflow. A buyer with a pollen problem can read the Coway's pollen row. The Levoit's sheet does not have one.

Conclusion: for any room over 220 square feet the Coway wins this section outright. Under 220 square feet the Levoit's 141 CFM is enough and the row stops mattering. Full airflow notes are in the Levoit Core 300S spec sheet and the Coway AP-1512HH spec sheet.

Power and noise: the Levoit draws 23 W to the Coway's 77 W

The Levoit's rated power is 23 W. The Coway's is 77 W. That is a 54 W gap, more than three times the draw for about 1.65 times the airflow.

Run both around the clock and the editorial arithmetic is about 201 kWh a year for the Levoit and 675 kWh for the Coway. At a 16 cent US average rate the difference is roughly $76 a year. Over a three-year ownership that is more than the Levoit's purchase price.

Noise favours the Levoit on both ends. Its sheet says 22 to 50 dB; the Coway's says 24 to 53 dB(A). Two decibels on low is barely audible. Three decibels on high is a noticeable step.

A fair caveat: neither maker prints dB per speed, so the floor on each is the sleep or lowest setting and the ceiling is the maximum. Third-party testers have measured the Levoit above its printed figures.

Conclusion: the Levoit wins power and noise by clear margins. If the unit sits next to a bed and runs all night, this section can outweigh the airflow section.

Pricing: the Levoit is $90 cheaper to buy, and the filter rows are not the same shape

The Levoit Core 300S is $149.99 regular price on levoit.com. The Coway AP-1512HH is $239.99 on cowaymega.com. Both pages were checked October 10, 2026 and neither showed a sale price. Both Coway colours were listed sold out.

Filters are priced differently. Levoit sells a single Core 300 Series Original Filter for $29.99 and prints no replacement interval. Coway sells a $59.79 set containing one HEPA filter rated one year and two deodorisation filters rated six months each, so one set is one year.

To compare, Specs Duel has to make an assumption for the Levoit. At two filters a year, the midpoint of the 6 to 8 months third-party reviewers quote, the Levoit costs $59.98 a year in filters. At one filter a year it is $29.99. The Coway is $59.79 either way, no assumption needed.

Cost per CFM is the cleaner comparison. $149.99 for 141 CFM is $1.06 per CFM. $239.99 for 233 smoke CFM is $1.03 per CFM. The Coway buys airflow slightly cheaper; the Levoit simply buys less of it.

Conclusion: the Levoit wins on purchase price by $90 and roughly ties on yearly filter cost. The Coway wins on documentation of that cost.

Controls and app: the Levoit has Wi-Fi, the Coway has buttons

The Levoit Core 300S lists the VeSync app, schedules, a 1 to 24 hour timer, Alexa and Google Assistant voice control, Auto Mode from a particle sensor, Sleep Mode and a Check Filter Indicator. It does not print the number of fan speeds.

The Coway AP-1512HH lists five fan stages, Auto, 1, 2, 3 and Eco, a 1, 4 or 8 hour timer, an air quality indicator, a filter change indicator and no app of any kind. Eco mode powers the fan down after 30 minutes of clean readings.

This is the row where a buyer's preference decides the winner. A household that wants schedules from a phone has one choice. A household that does not want another connected device has the other.

Owner reports on retailer pages note the Coway's indicator light is bright at night and often gets covered. The Levoit's Sleep Mode turns its display off. That is one practical difference the sheets only hint at.

Conclusion: the Levoit wins on documented controls. The Coway's set is adequate and deliberately offline.

Coway Airmega AP-1512HH Mighty's public homepage, captured automatically on October 10, 2026. Not a logged-in account; the page may have changed since.
Coway Airmega AP-1512HH Mighty's public homepage, captured automatically on October 10, 2026. Not a logged-in account; the page may have changed since.

Size and placement: the Levoit fits a nightstand, the Coway needs floor

The Levoit is 8.7 inches square and 14.2 inches tall at 5.95 lb. The Coway is 16.8 inches wide, 9.6 inches deep and 18.3 inches tall at 12.3 lb.

The Levoit's footprint is about 76 square inches. The Coway's is about 161 square inches, more than double. The Levoit can sit on a desk or a dresser; the Coway is a floor appliance that needs clearance in front of its intake.

Weight matters for a unit that moves between rooms. The Levoit can be carried one-handed by anyone in the household. The Coway is a two-hand lift.

The Coway's size is the cost of its airflow and its four-part filter stack. The Levoit's size is the reason its CADR stops at 141.

Conclusion: the Levoit wins placement. If the unit has a fixed spot on the floor, this section does not decide anything.

Warranty and support: the Coway covers the motor for three years

Levoit prints a 2-Year Limited Warranty and a 30-Day Money Back Guarantee on the product page, with no registration condition stated.

Coway's warranty table, on its registration page, gives one year on any internal or functional part and three years on motor and electronic parts for the AP-1512HH, from the retail purchase date. Filters are consumables and damage from non-genuine filters is excluded.

So the Coway is better on the part that fails expensively, the motor, and the Levoit is better on everything else in year two. Neither maker itemises support channels on the product page.

On documentation the Coway sheet is more complete: three CADR rows, a filter interval and a fan speed count that Levoit leaves blank. Levoit shows three certification logos; Coway shows none on its product page.

Conclusion: the Coway wins warranty on the motor row. Call the rest of this section a draw. See the Blueair 311i Max spec sheet for how a registration-dependent warranty compares.

What users report: neither maker publishes a rating, so the samples are small

Neither levoit.com nor cowaymega.com shows a customer star rating or review count for these units as of October 10, 2026. The only rating on the Levoit page, 4.7 out of 5, refers to the VeSync app.

For the Coway, a retailer sample at Sylvane shows 4.8 out of 5 from 95 reviews with 97 percent recommending. The recurring complaint is the bright indicator light at night; noise at speed 3 and a plastic smell when new come up less often.

For the Levoit, third-party testers rather than owners provide the signal. Rtings found it slower to clean air than the older Core 300. Smart Air measured 32.5 dBA on low and 55.6 dBA on high, above the printed range, and criticised the Auto Mode threshold as lenient.

Complaints about a filter smell and a rattling fan that circulate online refer to the Core 300, a different model.

Conclusion: no winner. Neither sheet has an official owner score, and the third-party samples are too different in kind to rank.

Choose the Levoit Core 300S if, choose the Coway AP-1512HH if

The sheets split cleanly by room size and by what the buyer wants to plug in.

Frequently asked

Is the Coway AP-1512HH worth $90 more than the Levoit Core 300S? For a room over 250 square feet, yes: it publishes 65 percent more smoke CFM and 142 more square feet at 4.8 ACH. For a room under 220 square feet, no, because the extra airflow goes unused and the Coway draws 54 W more.

Which is cheaper to run for a year? The Levoit, by an editorial estimate of about $76 at a 16 cent US rate, based on 23 W against 77 W around the clock. Filter cost is roughly a tie at about $60 a year if the Levoit filter is changed twice.

Which is quieter? The Levoit on paper: 22 to 50 dB against 24 to 53 dB(A). Neither maker prints dB per speed, and third-party meters have read the Levoit higher than its sheet.

Does either have an app? Only the Levoit. The Coway AP-1512HH has on-unit buttons, an air quality light and a three-step timer, and no Wi-Fi.

Is there a sheet that beats both? For rooms up to 440 square feet the Blueair Blue Pure 311i Max publishes higher CADR at 32 W and $229.99; see the Coway vs Blueair duel.

Bottom line

On the full sheet the Coway Airmega AP-1512HH Mighty wins this duel. It publishes 233 to 246 CFM against the Levoit's single 141, covers 361 square feet at 4.8 ACH against 219, prints a filter schedule and backs the motor for three years.

The Levoit Core 300S wins six rows that matter to a specific buyer: price by $90, power by 54 W, weight by 6.35 lb, noise floor by 2 dB, app control and a timer that runs to 24 hours.

The decision is the room. Under 220 square feet, buy the Levoit and keep the $90. From 250 to 360 square feet, buy the Coway. Between those numbers, read the room-size shortlist, which places the Blueair 311i Max on the same table, or browse all three on the Air Purifiers topic page.

All figures per levoit.com and cowaymega.com, checked October 10, 2026. No lab tests.

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