Winix 5510 Review: The 5500-2's Successor, by the Numbers

Winix 5510 vs the 5500-2

The two share a body shape, filter layout and CADR class. The AHAM Verifide directory lists the 5500-2 at 239 cfm smoke, 244 dust and 247 pollen for 370 sq ft, and the 5510 (with the 5520 and 5530) at 253, 252 and 247 for 392 sq ft. So the 5510 is a little stronger on smoke and slightly more efficient: AHAM's integrated energy factor is 4.6 against the 5500-2's 4.1.

The filters are not interchangeable. The 5500-2 used Filter S; the 5510 uses Filter Q (SKU 1712-0123-00). If you are replacing a 5500-2, budget for the new filter type.

Winix 5510 AHAM figures and room size

Air changes per hour from 253 cfm smoke CADR, 8 ft ceilings.

Room	Floor area	Air changes an hour
Bedroom, 14 x 16 ft	224 sq ft	8.5
Living room, 16 x 20 ft	320 sq ft	5.9
AHAM room size	392 sq ft	4.8
Open plan, 20 x 25 ft	500 sq ft	3.8

Winix's "up to 1,882 sq ft" assumes one air change an hour. Use the 392 sq ft figure for allergies, smoke and pets. Our sizing calculator runs the numbers for your room.

The carbon filter: why the 5510 handles odors

Most purifiers at this price wrap a thin sheet of carbon-coated fabric around the HEPA filter. Winix's AOC (activated odor control) carbon filter is a separate panel of carbon granules, which gives gases far more surface to stick to. That makes the 5510 a better fit than most for cooking smells, pet odor and a smoky neighbor. The manual says the carbon filter cannot be washed and lasts about 12 months, the same as the True HEPA filter; the pre-filter should be cleaned every 14 days.

Winix lists the Filter Q replacement set at $109.99 on its own store; genuine Filter Q is also sold on Amazon. If you change both filters once a year as the manual suggests, that is the yearly running cost from Winix's store.

PlasmaWave: what it is and whether to use it

PlasmaWave is Winix's ionizer-type feature: it creates charged molecules that Winix says break down pollutants "without producing harmful ozone". The 5510 manual states that the unit "complies with the maximum allowable concentration of ozone of 0.050 parts per million," which is California's limit, and the 5510 and 5520 appear on the California Air Resources Board's list of certified air cleaners as electronic devices. The manual also gives PlasmaWave its own button to enable or disable it.

The filters do the measured work; AHAM tests CADR on the whole machine. If you would rather not run any ionizer, switch PlasmaWave off. Our guide to ionizers and their byproducts covers the evidence on both sides.

Sensor and Auto Mode

The manual describes the 5510's Smart Sensor as detecting "the amount of odorous gas in the environment", and in Auto Mode the fan follows it. That is useful for cooking and odors, but a gas sensor does not count particles, so a dusty room or pollen day may not raise the fan the way a laser particle sensor would. If allergies are the reason you are buying, run it on a fixed speed during the day. A light sensor dims the display and slows the fan when the room goes dark.

Winix lists 23.5 dB on the slowest speed. The manual rates it at 65 W.

What the Winix 5510 costs to run for three years

AHAM's directory estimates the 5510 uses 323 kWh a year; at 17.2 cents per kWh, EIA's 2025 average US residential price, that is about $56 a year. The manual gives both the HEPA and the carbon filter about 12 months, so one Filter Q a year is the plan.

Three-year cost at Winix's list prices, AHAM's annual energy estimate and 17.2 cents per kWh. Our arithmetic.

Item	Cost
Purifier (Winix list price)	$349.99
Filter Q, one a year for 3 years (Winix store)	$329.97
Electricity, 3 years	$167
Total	$847

Winix's own list prices are the high end. The 5510 and genuine Filter Q are usually sold below them, so check current prices and redo the sum; the electricity line will not change.

Winix 5510 vs the alternatives

AHAM Verifide figures, read November 3, 2026.

Model	Smoke CADR	AHAM room size	Carbon
Winix 5510	253 cfm	392 sq ft	Granular carbon panel
Levoit Vital 200S-P	250 cfm	388 sq ft	Carbon layer
Levoit Core 400S-P	234 cfm	363 sq ft	Carbon layer
Winix AM90	241 cfm	373 sq ft	Carbon pre-filter, 3-month life
Honeywell HPA300	300 cfm	465 sq ft	Carbon pre-filter

Who should buy the Winix 5510

• Buy it for a living room, kitchen-adjacent room or apartment up to about 390 sq ft where odors are part of the problem.
• Buy it to replace a 5500-2: same footprint, a little more airflow, Wi-Fi.
• Skip it if you want Auto Mode to react to dust and pollen; its sensor reads gases. The Levoit Core 400S-P has a laser particle sensor.
• Skip it for a big open plan space; see the best purifiers for large rooms.

The 5520 and 5530 share the 5510's AHAM listing and filter. Winix's naming differs by retailer and by whether the model shows an air quality reading or app control, so compare the features on the box rather than the number, and buy whichever is cheapest on the day.

For a taller, slimmer Winix with app control, see our Winix AM90 review.