Honeywell AirGenius5 HFD320

Honeywell AirGenius 5 HFD320 review: I Ain’t Paying Anything More!

The highest lineup in Honeywell AirGenius series, Honeywell AirGenius 5 HFD320 has exceeded most tower air purifier performance with its latest innovative purifying technologies. Among all its features, Honeywell HFD320 own patented QuietClean ifD filter is perhaps the most interesting aspect as it will pit against the traditional HEPA filter on overall capabilities. Will the permanent filtration stand out in this fearsome and competitive purifying industry? Let’s find out.
± 299.95 p
     Annual filter ^    
± 0 p
Online price*
Latest Amazon price

Honeywell AirGenius 5 HFD320 Specification

ProductHoneywell AirGenius 5 HFD320
11.5 x 29 x 11.5 in
(29.2 x 73.7 x 29.2 cm)
Weight14 lb (6.4 kg)
Coverage (up to)250 sq. ft. (23 m2)
Dust free (CADR)160 cfm (272 m3/h)
Pollen free (CADR)170 cfm (289 m3/h)
Smoke free (CADR)161 cfm (274 m3/h)
Airflow speed
- Lifespan
- Replacement cost ($)
Washable Pre-filter
HEPA filter
- Lifespan
- Replacement cost ($)
Carbon filter
- Lifespan
- Replacement cost ($)
Ionizer/ TechnologiesElectronic Ionizer
UV-light/ PCO
Other filter
ifD Micro-Filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
HRF-K2 Filter K Household Odor & Gas Reducing Pre-filter (2 pack)
3 months+- 15.95
Noise level
Power consumption
Timer/ Scheduler1, 2, 4, 6, 8, 10, 12
More color options
Auto mode
Air qualityAQ indicator
Filter change indicator
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty5 years
Email/ Phone support

Product image

Honeywell AirGenius 5 HFD320 key features

  • 3-stage permanent filtration
  • 2 pre-filter options - A permanent washable foam pre-filter or odor & gas reducing pre-filter
  • Permanent QuietClean ifD filter
  • Optional on/off Oscillation
  • 5 speed smart controls - SLEEP (almost silent operation), GERM (cold flu season), GENERAL cleaning, ALLERGEN (peak allergen season) or MAX Cleaning Power
  • Auto shut-off timer - 2, 4, 6, 8, 10 or 12 hours
  • Electronic filter gauge and filter change indicator
  • 5 years limited warranty

Honeywell AirGenius 5 HFD320 review

  • Sleek, airflow resistance tower design that is modern and practical.
  • Support either permanent pre-filter or odor-reducing pre-filter (our votes goes to odor removing pre-filter).
  • Practically no annual maintenance cost via its patented QuietClean ifD technology.
  • Effective ifD filter that will capture most microscopic household allergens.
  • Easy to use Smart controls with optional oscillation and accent light.
  • Electronic Filter Check reminder with live gauge indicator.
  • Highly customizable timer (up to 12 hours).
  • 5 years warranty.
  • Selling price is slightly on the high side although things even up with its virtually zero maintenance cost.
  • Loses out to traditional media filtration that tends to have stronger filtration efficiency. Odor filtration is not great either.
  • The permanent filter requires regularly clean up (quarterly or when necessarily) to prevent congestion from the airborne particles.

The starters

Honeywell AirGenius 5 HFD320 dimension
11.5 x 29 x 11.5 in
(29.2 x 73.7 x 29.2 cm)
Honeywell AirGenius 5 HFD320 weight
14 lb (6.4 kg)

Unmistakably Honeywell design, HFD320 is the highest range in the Genius series with standout black tower housing and blue accent light. At 11.5 x 29 x 11.5 in dimension and 14 lb weight, it’s the same size as AirGenius 4 but with an added premium touch screen control (more on this later). Surrounding the air purifier is the airflow grille with air coming in from the rear and exit through the front. Build quality is decent with the sleek tower body allows the permanent filters to be removed, maintain, and install back quickly.

Honeywell AirGenius 5 HFD320

Continue with the premium touch screen control, Honeywell AirGenius 5 comes with 5 operable controls including a dedicated power button. Let’s start with the 5 cleaning setting. The 1 level is Sleep mode where you will use it during night time for silent operation. The 2 level is Germ mode where the air purifier will slow down air movement, forcing the germs to dwell longer in the filter and increases the filtration efficiency. Best used during cold and flu season. The 3 level is General mode: the default setting each time you turn on the air purifier. The 4 level is Allergen mode where the air cleaner speed is set to captures allergens like pet dander, mold, and pollen. Best used during the spring and fall where allergens outbreak is high. Finally, the 5 level is Max cleaning mode where you want the highest airflow speed to deal with stinky odors and dusty room. Next to it is the Timer button that will cycle between 2, 4, 6, 8, 10, 12 hours auto-shut off. On the other side, you have the Oscillate button that on tap will gently rotate the purifying from side to side to increase circulation. Above the Oscillate button is the Accent Light button that will create a soft accent light at the bottom of the air cleaner. Tap to cycle between, off, low and high. Lastly, the Filter Rest “OK” button will reset the fill ‘chart’ when tap and hold more 2 seconds. Use it when the filter chart status if full (completely illuminated) and after you have cleaned the filter.

Let’s recap on the features again. you have the permanent 3-stage filtration with optional Oscillate, classy Accent Light, 5 speed, timer, electronic filter gauge, AHAM and ARB certified (comply with the federal ozone emissions limit), Energy Star rated and 5 years warranty.

Airflow, speed, and CADR

Honeywell AirGenius 5 HFD320 coverage
Purifying coverage
250 sq. ft. (23 m2)
Honeywell AirGenius 5 HFD320 fanspeed
For a permanent tower air purifier, Honeywell AirGenius 5 HFD320 has a pretty remarkable 250 sq. ft. purifying coverage. With consistent airflow distribution spreading across the 5 speed, choose either from SLEEP, GERM, GENERAL, ALLERGEN or MAX Cleaning setting. Needless to say for more comprehensive medium room size coverage, go with the MAX Cleaning mode. There is no autonomous purifying nor Eco mode but that should not stop you from placing HFD320 in a bedroom.
Honeywell AirGenius 5 HFD320 dust CADR
160 cfm (272 m3/h)
Honeywell AirGenius 5 HFD320 pollen CADR
Pollen CADR
170 cfm (289 m3/h)
Honeywell AirGenius 5 HFD320 smoke CADR
Smoke CADR
161 cfm (274 m3/h)
Clean air delivery rate is equally impressive for a permanent filter air purifier. Highest in the AirGenius group, You have dust CADR at 160 cfm, pollen CADR at 170 cfm and smoke CADR at 161 cfm. None passed the 200 cfm set by us but the air purifier would still have no problem covering large to fine particles.

What’s inside count

Honeywell AirGenius 5 HFD320 Pre-filter
Washable Pre-filter
Honeywell AirGenius 5 HFD320 technologies
Electronic Ionizer
Honeywell AirGenius 5 HFD320 other filters
ifD Micro-Filter
^ Honeywell AirGenius 5 HFD320 filters/ technologies/ lifespan
Like all Honeywell AirGeniuses, the patented QuietClean ifD technology will eliminate up to 99.9% of microscopic allergens as small as 0.3 microns. The washable/ odor reducing pre-filter will capture dust and large particles, while the permanent honeycomb washable ifD filter will handle other smaller micron size allergens, germs, and bacteria. Right at the end, there is an electronic ionizer that creates an ionizer field to boost the cleaning power. The filtration works reasonably well although it's incomparable against traditional HEPA and carbon filter media. Another thing is the 2 permanent filters requires regular maintenance/ cleaning (quarterly or when necessarily) to prevent dust and other particles from clogging up the filter thus reduce its efficiency.

Covered against

Honeywell AirGenius 5 HFD320 VS Dust



Honeywell AirGenius 5 HFD320 VS Pollen



Honeywell AirGenius 5 HFD320 VS Hair

Hair/ Pet hair


Honeywell AirGenius 5 HFD320 VS Dust mite

Dust mites


Honeywell AirGenius 5 HFD320 VS Mold/ Mildew

Mold/ Mildew


Honeywell AirGenius 5 HFD320 VS Pet dander

Pet dander


Honeywell AirGenius 5 HFD320 VS Virus/ Germ

Virus/ Germ


Honeywell AirGenius 5 HFD320 VS Tobacco smoke

Tobacco smoke


Honeywell AirGenius 5 HFD320 VS Chemical



Honeywell AirGenius 5 HFD320 VS VOCs



Honeywell AirGenius 5 HFD320 VS Smoke/ Gas

Smoke/ Gas


Honeywell AirGenius 5 HFD320 VS Odor



Honeywell Air Genius 5 250 sq. ft. plus 160 cfm dust CADR would have no problem dealing with dust mites, pet hair, pet dander, pollen, mold, and mildew. On fumes and odors, the 161 cfm smoke CADR plus permanent ifD filter is relatively weak in handling chemicals like VOCs, tobacco smokes, cigarette, vapor, radon, and ammonia.

Keep it down

Honeywell AirGenius 5 QuietClean technology generates very little noise particularly in the first 3 speed (Sleep, Germ, and General mode). For night time use, you can run the air purifier in Sleep mode where it will be set to whisper quiet operation. Max Cleaning Power (fifth speed) noise is audible but perfectly bearable. Power usage is considerably low too even without any energy-management system. The official statement from Honeywell that this Energy Star Rated HFD320 uses less than a light bulb upon lower speed selected. We have not tested it but the usage figure would not be too far off.

At what cost

Honeywell AirGenius 5 HFD320 MRSP/ RSP
+- 299.95
Honeywell AirGenius 5 HFD320 annual filter replacement cost
Annual Filter Cost
+- 0
^ Replacement filters/ estimated cost
Inexpensive price tag after online discount, Honeywell AirGenius 5 would fall under the affordable air purifier bracket but at the higher end. With the washable foam pre-filter and permanent ifD QuietClean technology, HFD320 won't cost you any additional dime upon purchase. Even if you do opt for the odor reducing pre-filter upgrade (recommended), at most +- 64 would be the annual filter replacement cost.
You can easily find Honeywell AirGenius 5 in Target, BestBuy, HomeDepot, Walmart of Kaz official website. The pricing varies depending on the respective stores and seasonal sales. My advice is to skip through all the hassle and buy straight from Amazon as they always have the best deal, 30 days return policy, and you do not need to register an account again since everyone will definitely have an Amazon account.

Honeywell AirGenius 5 HFD320 VS the challengers

Honeywell HPA300

Honeywell HPA300

Fall back to the conventional, HEPA filter powered air purifier, HPA300 will rock you on outstanding filtration, coverage and high airflow delivery rate. On the flip side, if you don't mind the higher annual filter maintenance cost, think again as the cost will come back and haunt you annually.
Airfree Onix 3000

Airfree Onix 3000

Another filterless, no maintenance air purifier that you could also consider. Airfree Onix 3000 patented Thermodynamic TSS Technology might not work exactly the same as ifD filter, it has the advantage of wider purifying coverage and no maintenance required but trade-off is a much, much slower purifying.
Honeywell AirGenius 4 HFD310

Honeywell AirGenius 4 HFD310

If you want something similar but cheaper, this is exactly the air purifier you should go for. Drop 1 cleaning setting (GERM mode), Touch Smart control, and Advanced timer (1, 2, 4, 6, 8, 10, 12 hours), everything looks identical from dimension, function, to the ifD purifying technology.
Honeywell AirGenius3 HFD300

Honeywell AirGenius 3 HFD300

Even cheaper option with a smaller dimension and white housing. Choosing this lowest range Air Genius and you will have to give up on 2 extra speed (Allergen and GERM mode), advanced Touch Smart control and timer.

Final thoughts on Honeywell AirGenius 5 HFD320

If you need a hassle-free, tower air purifier to kick start your journey to cleaner air, Honeywell AirGenius 5 HFD320 is the one. 74% of the Amazon users gave it 4-5 stars rating because they like the permanent, no filter replacement setup. They also agreed on the filtration efficiency against allergens plus many people are happy with the pricing. The high 19% that dislike the air purifier complains on many things: The poor build quality that brokes down after a couple of months. The non-existence filtration that barely does anything. Noisy fan noise and Kaz customer support that is not helpful in resolving a claim. We only have our test unit for a couple of weeks but so far we did not experience any of the issues as mentioned. In any case, you have the 5-years warranty standing by if anything goes wrong.

Verdicts and ratings

Build quality
Airflow delivery
Particle Filtration
Smoke Filtration
Honeywell AirGenius5 HFD320

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