How often do filters need replacing?

The Green True HEPA and activated carbon filters are rated for about once a year under normal use. The pre-filter is vacuumable and does not need replacing on that schedule.

The unit comes with the 3-in-1 filter, an owner's manual and guides. The filter ships wrapped, so it must be unwrapped before first use.

How does it differ from the Coway 400?

It covers more square footage than the 400 while taking up a smaller footprint, according to owners. Both use multi-stage filtration with an air quality sensor.

Does it adjust fan speed on its own?

Yes. In Auto mode the real-time air quality monitor reads the room and sets fan speed, with a color indicator showing current air quality. Sleep, Eco and Turbo modes are also available.

Sleep and Eco modes run quietly, while Turbo pushes the most air and is the loudest setting. Most owners run it in Auto and let it settle.

Where is the Coway Air Purifiers for Large Room Whole cheapest?

At Sylvane, for $399.99, as of our latest check.

What do buyers say about the Coway Air Purifiers for Large Room Whole?

Buyers like: High quality and works great; Easy to use once the filter packaging is opened; Covers more square feet with a less obtrusive, smaller footprint than the 400. Common complaints: Opening the unit to access the filter packaging was a challenge.

Coway Air Purifiers for Large Room Whole

Q: How large a room can it clean?

Coway rates it for one air change per hour in rooms up to 3,285 sq ft, or two air changes per hour in rooms up to 1,643 sq ft. For allergy relief, the two-change figure is the more useful target.

Best price now

$399.99at SylvaneChecked Nov 8

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What reviewers say

Owners rate it highly, calling it high quality and easy to use once the filter packaging is out. Many note it covers more square footage than the Coway 400 in a less obtrusive footprint. The main gripe is the effort of opening the unit to reach the filter wrapping.

What people mention

CoveragePraisedOwners say it handles more square footage than the Coway 400.
FootprintPraisedBuyers describe it as less obtrusive than the larger Coway model.
Ease of usePraisedOwners find it simple to run once the filter is unwrapped.
Filter accessCriticisedGetting the unit open to remove the filter packaging is described as a struggle.
Build qualityPraisedBuyers call it high quality and say it works great.

About the Coway Air Purifiers for Large Room Whole

This Coway air purifier is made for large rooms. It delivers one air change per hour in rooms up to 3,285 sq ft, or two air changes per hour in rooms up to 1,643 sq ft.

Air passes through three stages of filtration: a vacuumable pre-filter, a Green True HEPA filter and an activated carbon filter. Together they capture particles, odors and smoke. HyperVortex airflow pushes purified air quickly across the room to help clear dust, allergens and pollen.

A real-time air quality monitor with a color indicator tracks the air. In Auto Mode, it adjusts the fan speed automatically. The purifier also has Sleep, Eco and Turbo modes and three fan speeds. Under normal use, the Green True HEPA and carbon filter need replacing only once a year.

Function

Air purification

Coverage

One air change per hour up to 3,285 sq ft; two air changes per hour up to 1,643 sq ft

Filtration

Vacuumable pre-filter, Green True HEPA filter, activated carbon filter

Airflow

HyperVortex

Modes

Auto, Sleep, Eco, Turbo

Fan speeds

Air quality monitor