Winix NK105 Review

Designed in a standard tower air purifier framework, the Wi-Fi  enabled Winix NK105 manage to retain its robust air flow while still have top-notch build quality. Versatile and very simple to operate, Winix NK105 is terrific for owner and their children that utilize it on a day to day basis. Comparing the airflow delivery rate, applicable area, noise level and power usage, how is Winix NK105 efficiency against airborne microorganisms and contaminants? Head over to our air purifier complete review below.
online price (US)**
±329.00 $$$$/ 7

(annual filter cost ±120)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Winix NK105 Specification

ProductWinix NK105
12.2 x 29.5 x 12.2 in
(31 x 74.9 x 31 cm)
Weight17 lb (7.7 kg)
Coverage (up to)320 sq. ft. (30 m2)
Airflow speed48-224.6 cfm (82-382 m3/h)
Dust free (CADR)221 cfm (375 m3/h)
Pollen free (CADR)218 cfm (370 m3/h)
Smoke free (CADR)207 cfm (352 m3/h)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
True HEPA filter
1 year
Carbon filter
- Lifespan
- Replacement cost ($)
Coated Deodorization (CD) Carbon Filter
1 year
Ionizer/ TechnologiesPlasmaWave Technology
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Filter N 112180
1 year
+- 119.99
Optional/ Addon
Noise level33.7 - 50+ dB
Power usage level5 - 55+ W
Timer/ SchedulerVia app
SensorsVOC sensors (Air quality)
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty2 years
Email/ Phone support

Key Features

  • Wi-Fi enabled and compatible with WINIX SMART app
  • 4-stage 360 degree filtration with PlasmaWave™ Technology
  • Fine mesh pre-filter
  • True-HEPA filter
  • Coated Deodorization (CD) Carbon Filter
  • 360 degree advanced air flow circulation
  • 4 fan speeds (Low, Medium, High, Turbo) with Auto mode
  • LED Auto Dim Feature (sleep mode)
  • VOC Smart sensor
  • Child lock
  • 2 years warranty

Design And Usability

Winix NK105 dimension
12.2 x 29.5 x 12.2 in
(31 x 74.9 x 31 cm)
Winix NK105 weight
17 lb (7.7 kg)

Sharing the exact same housing as Winix NK100, Winix NK105 modern tower air purifier is widely acclaimed and recognized by distinctive Reddot award 2016 and GOOD DESIGN AWARD winner. With tall and round-shaped tower profile at 12.2 x 29.5 x 12.2 in and 17 lb weight, build quality is one of the best that every parts is integrated except for the filter replacement cover. Standard features are exact replica of NK100 with 4-stage filtration including PlasmaWave, 3 colors air quality LED indicator light (Blue – Good, Yellow – Fair, Red – Poor), VOC SmartSensors, ChildLock, 4 fanspeed with Auto mode/ Sleep mode, filter replacement indicator, AHAM verified, CARB certified Ozone-safe, ECARF tested, UL listed, ENERGY STAR rated and 2 years warranty. Extra features from Winix NK105 is the WiFi-enabled support which is a must requirement to run Winix app.

WiFi enabled

Sole reason to go with WiFi ready Winix NK105 is the connectivity between air purifier and Winix SMART app. With Winix SMART app, you could monitor indoor & outdoor air quality via history charts, check local weather, control display lighting, rename your unit, check filter remaining lifespan. What you will surely utilize in the app is of course to control the fanspeed, comprehensive multi operation schedule based on specific time/ date, turn on/ off the air purifier anywhere in the world so long both are connected to WiFi.

Connecting the apps is very tricky regardless of the phone e.g. iPhone, iPad or android devices. You would need to turn on the app, complete the setup, disconnect from your current network and connect to the air purifier network by pressing the WiFi button on the unit. Once you are connected to air purifier network, the WiFi indicator light would stop flashing and you can start utilizing the app.

Airflow, Coverage, And CADR

Winix NK105 coverage
Purifying coverage
320 sq. ft. (30 m2)
Winix NK105 fanspeed
Winix NK105 brilliant purifying coverage stands at 320 sq. ft. which should be ideal for bedroom, living hall, basement that falls within its applicable area. Airflow is strong and consistent between 48-224.6 cfm and standout from the crowd is Winix NK105 360 degree airflow distribution that covers all surrounding angles. Other common features include 4 fanspeed from Low, Medium, High, Turbo plus Auto mode and self dimming Sleep mode.
Winix NK105 dust CADR
221 cfm (375 m3/h)
Winix NK105 pollen CADR
Pollen CADR
218 cfm (370 m3/h)
Winix NK105 smoke CADR
Smoke CADR
207 cfm (352 m3/h)
Tally with the impressive airflow delivery rate, Winix NK105 CADR (Clean air delivery rate) is on the high side at 221 cfm (Dust), 218 cfm (Pollen) and 207 cfm (Smoke). In short Winix NK105 purifying performance and figures is the exact same as Winix NK100.

Filters And Performance

Again same for Winix NK105, its powered by the exact same 4-stage filtration setup as Winix NK100. First off the all-in-one filtration is fine mesh pre-filter that helps prolong True HEPA filter lifespan by trapping large airborne particles e.g. dust, hair. For smaller particles such as pollen, mold that is untrappable by the pre-filter, the True HEPA filter would works it charm with its 99.97% efficient rate. On odors and smokes related pollutants, you can rely on the dependable Coated Deodorization Carbon Filter. Any trapped pollutants would be neutralize and break down via Winix PlasmaWave Technology that would not generate any harmful ozone in the process.

Noise And Energy Usage

Winix NK105 noise level
Noise level
33.7 - 50+ dB
Winix NK105 power consumption
Power consumption
5 - 55+ W
Winix NK105 33.7 - 50+ dB noise level is less noisy than most in-range air purifier at similar fanspeed. Expect almost zero noise at low speed, minimal noise at Medium speed and white noise at High/ Turbo speed. As an ENERGY STAR rated unit, Winix NK105 power consumption is considerably low between 5 - 55+ Watts which can be very fruitful in long-run.
Noise TypeDecibels
Winix NK10533.7 - 50+ dB
Breathing10 dB
Rustling leaves20 dB
Whispering/ Quiet library30 dB
Light rainfall40-50 dB
Conversation50-60 dB
Vacuum cleaner/ Hair dryer/ Washing machine65-80 dB
City traffic80-90 dB

Pricing And Maintainence Cost

Winix NK105 MRSP/ RSP
+- 329.00
Winix NK105 annual filter replacement cost
Annual Filter Cost
+- 120
^ Replacement filters/ estimated cost
Winix NK105 is of course more pricey than Winix NK100 due to the added WiFi-enabled features. Is it worth the extra bucks? Personally we would go for it simply for the comprehensive scheduling feature but to most people we would assume Winix NK100 would do just fine. On filter side, the same complaint we have with Winix NK105 is the expensive all-in-one cartridge filter that that requires complete replacement if either one of the filter is exhausted. Nonetheless, there are plenty of discounted deals online for Winix NK105 and we recommend searching it via Amazon website.

Winix NK105 VS The Challengers

Winix NK100

Winix NK100

The non-WiFi version that is identical in every way with a lower price tag so long you are willing to give up on Winix SMART app support.

Winix U300

Comes with addition CleanCel Antimicrobial coating, 5 years warranty and remote control. Drawback is the expensive price tag with weaker on CADR, airflow delivery and coverage.

Honeywell HPA204

Easy to use, built-in timer with reasonable price tag. Disadvantages include No WiFi support and lower clean air delivery rate.


  • Round tower housing that allows 360 degree air flow distribution with wide purifying coverage.
  • Strong, consistent airflow to support 4 fanspeed and Auto mode/ Sleep mode.
  • 4-stage filtration with True HEPA, Carbon filter and PlasmaWave™ Technology.
  • Highly comprehensive scheduling via Winix SMART app where you could set multiple fanspeed at specific time and day.
  • Again via the SMART app, you could turn on or off the unit at anywhere anytime.
  • Child lock feature that prevent your loved one from meddling the control.
  • Quick and simple filter replacement with only one filter cartridge yearly.
  • 2 years warranty.


  • Expensive to replace the all-in-one filter.
  • Non-washable filter cartridge that if the filter is stuck with unwanted particles, the only solution is to replace the whole filter.
  • Bright indicator light that does not dim down enough in sleep mode.
  • Not easy connecting to WiFi devices including popular models such as iPad, iPhone and android devices.
Winix NK105

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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