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.
± 329.99 p
     Annual filter ^    
± 120 p
Online price*
Latest Amazon price

Winix NK105 Specification

ProductWinix NK105
RSPMRSP/ RSP +- 329.99
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)
Dust free (CADR)221 cfm (375 m3/h)
Pollen free (CADR)218 cfm (370 m3/h)
Smoke free (CADR)207 cfm (352 m3/h)
Airflow speed48-224.6 cfm (82-382 m3/h)
A filterAnnual filter cost ($)+- 120
- Lifespan
- Replacement cost ($)
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 consumption5 - 55+ W
Timer/ SchedulerVia app
SensorsVOC sensors (Air quality)
More color options
Auto mode
Air qualityAQ indicator
Filter change indicator
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty2 years
Email/ Phone support

Product image

Winix NK105 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

The starters

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, CADR and everything in between

Winix NK105 coverage
Purifying coverage
320 sq. ft. (30 m2)
Winix NK105 airflow speed
Airflow speed
48-224.6 cfm (82-382 m3/h)
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.

What’s inside count

Winix NK105 Pre-filter
Winix NK105 HEPA filter
True HEPA filter
1 year
Winix NK105 carbon filter
Coated Deodorization (CD) Carbon Filter
1 year
Winix NK105 technologies
PlasmaWave Technology
^ Winix NK105 filters/ technologies/ lifespan
^ Winix NK105 filters/ lifespan/ price
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.

Winix NK105 is covered against

Winix NK105 VS Dust



Winix NK105 VS Pollen



Winix NK105 VS Hair

Hair/ Pet hair


Winix NK105 VS Dust mite

Dust mites


Winix NK105 VS Mold/ Mildew

Mold/ Mildew


Winix NK105 VS Pet dander

Pet dander


Winix NK105 VS Virus/ Germ

Virus/ Germ


Winix NK105 VS Tobacco smoke

Tobacco smoke


Winix NK105 VS Chemical



Winix NK105 VS VOCs



Winix NK105 VS Smoke/ Gas

Smoke/ Gas


Winix NK105 VS Odor



Without a doubt Winix NK105 4-stage filtration is highly efficient when take on common and micron size contaminants, allergens, viruses and bacteria. Made possible by ultra-powerful 48-224.6 cfm airflow distribution and wide 320 sq. ft. purifying coverage, Winix NK105 combined Pre-filter True HEPA filter filtration is exceptional in eradicating hair, dust, pet dander, dust mites, fungi, pollen, mildew, mold, spores and germs.  On handling odors and smokes, Winix NK105 Coated Deodorization (CD) Carbon Filter is also exceptional against cooking odors, radon, ammonia chemicals, VOCs, tobacco and cigarette smokes.

Keep it down

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.

At what cost

Winix NK105 MRSP/ RSP
+- 329.99
Winix NK105 annual filter replacement cost
Annual Filter Cost
+- 120
^ Winix NK105 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.

The challengers

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.

In conclusion......

  • 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.
Build quality
Airflow delivery
Particle Filtration
Smoke Filtration

Frequently Asked Questions (FAQ)FAQ

What is PlasmaWave ® Technology?

PlasmaWave is Winix exclusive, patented technology that emit positive and negative ions in order to form hydroxyls. The ions and natural water vapor combination Hydroxyls (OH) will breaks apart chemical, odors, allergens and other airborne pollutants at the molecular level. PlasmaWave is available in all Winix air purifiers and it does not produce any harmful ozone as certified by California Air Resources Board (CARB).

PlasmaWave produces hydroxyls, what is hydroxyls and is it dangerous?

Hydroxyl radical is a safe, naturally-occurring, reactive molecule formed by single oxygen and hydrogen bonding (OH). Winix PlasmaWave would replicate this natural process by producing hydroxyls to eliminate noxious gases including volatile organic compounds (VOCs), deodorize odors and destroy microorganisms like bacteria, mold, mildew. An optional feature where user have the option to activate or deactivate PlasmaWave in Winix NK105 air purifier.

Can I turn off the PlasmaWave feature in Winix NK105 air purifier?

Yes Winix NK105's PlasmaWave feature can be disabled via the control panel.

What does the Winix NK105 limited warranty cover?

Winix NK105 limited warranty will cover air purifier from manufacturer defect (materials and workmanship) at Winix own discretion. The defective product must be within the warranty period and free from any tampering, accidental damage and mishandling. Proof of purchase date must be presented before any repair or exchange commence. Warranty will be null and void if Winix NK105 air purifier is used for non-home or consumer purposes. If you air purifier fulfilled all the stipulated conditions, you may call 1-877-MY-WINIX (1-877-699-4649) for repair validation and arrangement.

Where is Winix NK105 air purifier made from?

Winix NK105 air purifier is made and manufactured in South Korea.

What is the function of Air Quality Sensor with Auto-Mode?

Air quality sensor or particle sensor detects the level of harmful particles in its surrounding. Using the information collected from the AQ sensor, Auto-Mode would automatically adjust the ideal speed accordingly. That way you get the best of both worlds in performance and energy-efficiency. All Winix air purifiers come with air quality sensor and Auto mode.

Is Winix NK105 air purifier wall mountable?

No Winix NK105 is not wall mountable.

Does Winix NK105 comes with all the filters for this price or do we need to buy the filters separately?

By default, Winix NK105 comes bundled with all the filters required for the air purifier to work.

How do you clean the pre-filter?

Winix permanent pre-filter or specific carbon pre-filter can be wash through vacuuming or rinsing. Simply remove the front pre-filter from the air purifier and rinse it with water to clear out all dust particles. The pre-filter must be completely dry (air-dry or hair dryer) before installing back into the air purifier.

Should I vacuum Winix NK105's carbon filter or HEPA filter periodically to boost the filters lifespan and usability?

Other than the AOC filter that requires cleaning once every 3 months, there is no need to vacuum the carbon filter or true HEPA filter before replacing them as the filters would be protected by the pre-filter from having contact with larger particles like dust. Furthermore, improper conduct on the carbon or HEPA filter could have a reverse effect that damage the filters usability and re-release the trapped particles like allergens, germs and bacteria out. You would, however need to clean the permanent pre-filter periodically or every 14 days depending on how much dust is accumulated by the filter.

Is Winix NK105's True HEPA filter washable?

You should never wash or even vacuum Winix NK105's HEPA filter unless it is clearly stated in the instructional manual. HEPA is a type of mechanical filter made completely from thin fibers. The water flow from washing or rinsing would cause irreversible damage to the HEPA filter by pushing the gap between the fibers. With opened gaps between each fibers, the HEPA filter lose its efficiency allowing fine particles like allergens pass through the filter easily.

Where do I find Winix NK105 replacement filter?

You can find the replacement filter for Winix NK105 from their official website or at Amazon. Always refer to the instructional manual on the correct filter replacement code or through our product specification section.

Can you use an extension cord to power Winix NK105?

Yes you can use it on Winix NK105 air purifier as long as the extension cord is not damaged or overloaded from too many connected appliances that end up consuming more watts than the cord can take in.

When Auto mode is selected, sleep mode is enabled by default?

When Winix NK105 is in Auto mode, sleep mode will also automatically engage when the lights go out. You will have to manually select any of the speed to disable both auto mode and sleep mode.

Winix NK105 Troubleshooting

Safety Tips

More on Winix NK105 Tower

Winix NK105 Tower conventional tower shaped exterior is simple yet elegantly designed. Its considerably tall and bulky, the subtle seamless rounded edges help maximize Winix NK105 Tower overall appearance. Moving forward with the build quality, controls are located at top that offer responsive and sensitive feedback. Winix NK105 Tower is perfectly fitted that you could expect only minimal apparent gaps on its body structure. Expect the air purifier to last even after certain timeframe.

Airflow effectiveness and purifying coverage

This is the particular attribute where Winix NK105 Tower air purifier stands out. One of the few tower air purifiers that is capable of covering large-sized space area, the air flow delivery rate is excellent. In most cases, office, bedroom or living hall is arguably the ideal area for Winix NK105 Tower due to its purifying applicable area. Additionally, Winix NK105 Tower at full-blast would have no issue clean out air-borne pollutants that is lingering the household. Dust, mold and mildew within its purifying range would not stand a chance with the air purifier effective airflow performance.

Maintenance and care

Arguably Winix NK105 Tower is one of the handiest air purifier to maintain in its segment that owner enjoyed for its plainness design. To retain constant air flow circulation from the air purifier, the streamline air vent and body platform is ideal to maintain as dust could be effortlessly wipe off all at once. Gently sweep the air-ventilation portion to prevent dust and airborne pollutants from impeding the air flow circulation.

Noise level and power consumption

Winix NK105 Tower well-balanced structure could rapidly purifies its nearby air within a decent noise level. Barely any noise at minimum fanspeed although that cannot be said on maximum speed. In comparison with other common household appliances, Winix NK105 Tower all-round noise level is slightly louder. In terms of power usage, Winix NK105 Tower is a decent for a full-blown air purifier that would not break the bank on electricity bills. Power usage is comparatively low across all fan speed unless the air purifier is operating at maximum capacity around the clock. In comparison with other household appliances power usage, Winix NK105 Tower monthly power usage is reasonably low to average.

Final thoughts on Winix NK105 Tower

Bring to a close, Winix NK105 Tower is what owner would be satisied about. Compare with the pros and cons, you would appreciate the advantages than the shortcomings. Combines the above attributes, obviously Winix NK105 Tower is the tower product you should go for.

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