Whole-room air care

Winix 5500-2 4-Stage Air Purifier

The Winix 5500-2 clears 99.999% of airborne particles across rooms up to 99 m2, pairing True HEPA filtration with carbon odour capture and PlasmaWave technology in one value-priced unit.
Exploded view of the Winix 5500-2 showing its pre-filter, carbon layer and True HEPA cartridge
How it cleans

Four filtration stages working together

Each stage does a different job, from large debris at the front pre-filter down to microscopic particles at the True HEPA layer, so airflow stays strong and the finer filters are not clogged early.
Washable front pre-filter for large debris

The washable pre-filter traps pet hair, lint and coarse dust before they reach the finer stages, which keeps the True HEPA layer working longer and makes routine care a quick rinse.

Smart sensors drive the automatic mode

A smart sensor reads air quality in real time and steps the fan up or down, so the unit responds to cooking smoke or a dusty afternoon without anyone adjusting a dial.

Sleep mode keeps nights genuinely quiet

Sleep mode drops the unit to its quietest 27 dB while airflow continues, so it can run beside a bed all night and still greet you with cleaner morning air.

Washable pre-filter cuts filter costs

Rinsing the front pre-filter under running water restores airflow and reduces how often the carbon and True HEPA layers need replacing, which lowers long-term running cost.

Cleaner air you can actually notice

Beyond the spec sheet, the 5500-2 changes daily comfort: fewer allergy symptoms in the morning, less pet odour by evening and a quieter bedroom at night.
Woman waking refreshed in a sunlit bedroom with the Winix 5500-2 running beside the bed

Automatic mode means fewer adjustments

Automatic mode reads air quality in real time and adjusts fan speed for you, so the room stays comfortable without anyone touching the controls or guessing the right setting.

Cat resting on a sofa near the Winix 5500-2 air purifier in a living room

Automatic mode runs the room for you

The smart sensor steps the fan down when the air is already clean, then ramps it up during cooking, cleaning or a dusty afternoon, keeping quiet hours genuinely quiet.

Close-up of the Winix 5500-2 control panel lighting up as air quality changes

Covers large rooms up to 99 m2

Rated for rooms up to 99 m2 with a CADR of 390 m3 per hour, it clears a living room, bedroom or office quickly without needing a second unit in the next space.

Winix 5500-2 air purifier glowing softly beside a bed in a dark room at night

Low power draw keeps bills small

Power draw runs from 3 to 70 watts depending on the setting, so leaving it on through allergy season adds very little to the household energy bill each month.

Winix 5500-2 air purifier positioned in the centre of an open-plan living room

Whisper-quiet sleep mode at night

Sleep mode drops operation to a low hum while still cleaning the air, so it can stay beside the bed all night and greet you with fresher air in the morning.

Winix 5500-2 air purifier running on a low fan speed in a sunlit home office corner

4-stage filtration targets every pollutant

Four separate stages handle pollen, dust mites, pet hair, mould spores, odours and smoke, so the unit clears what you can see and what you can only smell.

Where the 5500-2 fits best

It suits single rooms and medium open plans where dust, pollen, pets or cooking smells build up, rather than homes needing whole-house ducted air.
Winix 5500-2 air purifier beside a bed with fresh morning light from an open window

A bedroom during allergy season

Set it beside the bed and run sleep mode overnight so pollen and dust-mite debris stay low while you rest, then let the sensor carry you through the heavier morning air.

Winix 5500-2 air purifier running in a living room where two cats play on a rug

A living room shared with pets

The pre-filter catches hair before it spreads while the carbon layer works on dander odour, keeping a shared family room comfortable for pets and allergy-prone guests alike.

Winix 5500-2 air purifier placed near a kitchen counter after cooking

Kitchen and cooking odour control

Stand it a short distance from the hob rather than right beside it, so smoke and lingering food odours are pulled through the carbon layer before they settle into soft furnishings.

Winix 5500-2 air purifier beside a desk by an open window in a home office

A home office with dust and pollen

Working near an open window brings pollen indoors, and the sensor-driven mode responds to those spikes without you pausing work to change a setting or turn the fan up.

Winix 5500-2 air purifier on a low setting beside a small bed in a dim nursery

A nursery for light sleepers

At 27 dB on its quietest setting the unit can run all night in a child's room, cleaning air continuously without the fan noise that tends to wake light sleepers.

Winix 5500-2 air purifier standing alone in a small apartment living space

An apartment without ducted air

If you cannot alter a rental's ventilation, a single floor-standing purifier cleans the air you actually breathe, and it moves with you to the next place when you relocate.

Getting started

Three steps to steady clean air

Winix 5500-2 air purifier placed with open clearance on a wooden floor

Place it where air can flow

Position the unit on a hard floor with about a metre of clearance around the intake, away from curtains that could block the pre-filter and slow the airflow down.
Close-up of a hand pressing the auto mode button on the Winix 5500-2 control panel

Switch on automatic mode

Let the sensor read the room and adjust fan speed on its own; step up to manual speeds only when you want a quick boost after cooking, vacuuming or opening windows.
Washable pre-filter lifted from the Winix 5500-2 and rinsed under a kitchen tap

Wash the pre-filter monthly

Slide out the front pre-filter, rinse it under running water and let it dry fully before refitting, so the True HEPA and carbon stages keep their rated performance for longer.
Real owners

What owners say after daily use

Before you buy

Practical questions buyers ask

It is rated for spaces up to 99 m2 with a CADR of 390 m3 per hour, so it suits a bedroom, living room or home office. For best results keep doors mostly closed and let it run in auto mode so the sensor can match airflow to the room’s actual particle load.
PlasmaWave is a low-voltage ionization step designed to break down air pollutants, and Winix describes it as producing much less ozone than conventional ion generators. You can switch it off independently while the filters continue cleaning the air normally.
The pre-filter is washable and should be rinsed roughly monthly so airflow stays strong. The carbon and True HEPA layers are replaceable, and the unit includes a filter replacement indicator that tells you when they are due rather than leaving you to guess by date.
Noise runs from 27 to 51 dB depending on fan speed, and sleep mode keeps it at the quiet end while airflow continues. At 27 dB the sound is close to a soft whisper, so most light sleepers can leave it beside the bed without disturbance.
The washable pre-filter catches pet hair and coarse dust before they reach the finer stages, while the carbon layer adsorbs odours from pets, cooking and smoke. Owners of cats report fresher-feeling air, though nothing replaces regular vacuuming and grooming.
Power consumption is listed at 3 to 70 watts, so lighter settings sip very little electricity and full speed stays modest. Running it on auto mode lets the fan slow whenever the air is already clean, which keeps running costs low across a full year of daily use.