Coway · Best overall
Coway Airmega AP-1512HH Mighty
Named a top pick by Wirecutter year after year: quiet, efficient and simple, with an air-quality light and auto mode.
The one we'd buy first for most rooms.
- HEPA + deodorization filter
- Air-quality light and auto mode
$239.99at cowaymega.com · Nov 2026
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- smoke CADR: clean air it moves each minute
- 233 cfm
- room size it suits, every day
- 34 m²
- 361 ft²
- room size on smoggy days
- 22 m²
- 233 ft²
Coway Airmega AP-1512HH Mighty at a glance
- Smoke CADR
- 233 cfm (AHAM)
- Filter
- Pre-filter, deodorization (carbon) filter, True HEPA
- Replacement filter
- AP-1512HH-FP set: HEPA up to 1 year, deodorization up to 6 months
- Noise (maker)
- 24.4–53.8 dB
- Power
- 77 W
- Ioniser
- Yes, with its own on/off button
- Warranty
- 3 years (maker's listing)
Which rooms it suits
Everyday: AHAM's room size. Smog: AHAM's advice for smoke, a CADR at least equal to the floor area in ft².
| Room | Everyday | Smog days |
|---|---|---|
| Bedroom · 15 m² (161 ft²) | ||
| Living room · 30 m² (323 ft²) | ||
| Large room · 50 m² (538 ft²) |
From the maker
Our take
The Mighty has been the default answer to "which purifier?" for years, and the figures explain why. A smoke CADR of 233 cfm covers rooms of about 34 m², it is quiet on its lower settings, and in auto mode a sensor sets the fan for you while a coloured light shows how clean the room is.
It is buttons only: the AP-1512HHS is the version with Wi-Fi. Its ioniser has an on/off button; we'd leave it off, since the HEPA filter does the cleaning.
It has an ioniser you can switch off. The HEPA filter does the cleaning.
What's good
- About 22 m² on a smoky day, about 34 m² day to day
- From 24.4 dB on low
- Carbon deodorization filter
- HEPA filter lasts up to a year
What's not
- Too small for a big living room in smoke
- Has an ionizer: switch it off
- 53.8 dB on high, too loud to sleep through
Its filter: Coway AP-1512HH Mighty Replacement Filter Set · $59.79 at cowaymega.com
Good for
- Bedrooms and living rooms up to about 34 m²
- Anyone who wants a proven, low-fuss purifier
Skip it if
- You want app control: this one is buttons only (the AP-1512HHS adds Wi-Fi)
How it compares
Every air purifier in the shop.
| Product | Best for | Smoke CADR | Room size | Price |
|---|---|---|---|---|
| Levoit Core 300S | Smart bedroom | 141 cfm | 20 m² | $149.99 |
| Levoit Core 300 | Budget bedroom | 143 cfm | 21 m² | $89.99 |
| Levoit Vital 100S | Pet-friendly bedroom | 143 cfm | 21 m² | $119.99 |
| Coway Airmega 150 | Small & quiet | 153 cfm | 22 m² | $189.99 |
| Levoit Core 400S | Shows PM2.5 | 231 cfm | 33 m² | $189.99 |
| Winix C545 | Everyday pick | 232 cfm | 33 m² | $209.99 |
| Coway Airmega AP-1512HH Mighty (this one) | Best overall | 233 cfm | 34 m² | $239.99 |
| Coway Airmega AP-1512HHS (Mighty with Wi-Fi) | Smart Mighty | 233 cfm | 34 m² | $299.99 |
| Coway Airmega 200M | Mighty's twin | 233 cfm | 34 m² | $229.99 |
| Levoit Vital 200S | Pet homes | 250 cfm | 36 m² | $169.99 |
| Honeywell HPA300 | No-frills power | 300 cfm | 43 m² | $269.95 |
| Coway Airmega 400 | Big rooms | 376 cfm | 54 m² | $649.00 |
| Levoit Core 600S | Large rooms | 391 cfm | 56 m² | $299.99 |
| Blueair Blue Pure 211i Max | Most clean air | 435 cfm | 63 m² | $349.99 |
| Filtrete MPR 1900 MERV 13 filters for a DIY box-fan purifier (4-pack) | Budget build | — | — | $87.99 |
Its filter, and related models
Coway AP-1512HH & 200M Filter SetMighty & 200M · $59.79
Coway Airmega AP-1512HHS (Mighty with Wi-Fi)Smart Mighty · $299.99
Coway Airmega 200MMighty's twin · $229.99
In our buying guides
Head to head
Questions about the Airmega AP-1512HH Mighty
- What size room does the Coway Airmega AP-1512HH Mighty cover?
- About 361 ft² (34 m²). That's AHAM's room size for its smoke CADR of 233 cfm: the floor area, with an 8 ft ceiling, whose air it cleans about every 12.5 minutes.
- Is the Coway Airmega AP-1512HH Mighty enough for smog?
- For smoke and heavy smog AHAM suggests a smoke CADR at least equal to the floor area in square feet. By that measure the Coway Airmega AP-1512HH Mighty keeps up with a room of about 233 ft² (22 m²). Keep the windows shut and run it on high while the AQI is bad.
- Coway Mighty or Airmega 200M?
- Wirecutter and RTINGS describe them as the same machine: same filters, motor and controls, with a different front grille. Buy whichever is cheaper.
- How often do the Coway Mighty filters need replacing?
- Coway rates the HEPA filter for up to a year and the deodorization filter for up to 6 months. A light on the unit tells you when.
How we judge. We haven't tested the Airmega AP-1512HH Mighty in a lab of our own. The figures come from independent ratings (AHAM, Energy Star, NIOSH, the ASPCA) or the maker, and the verdict is ours, from those figures. No brand pays to be listed. Last checked Nov 7, 2026.
Coway Airmega AP-1512HH Mighty
$239.99 list price