Honeywell AirGenius 5 HFD320 review In 2023: I Ain’t Paying Anything More!

The highest lineup in AirGenius series. Honeywell AirGenius 5 HFD320 is not your typical filterless air purifier. It is a hybrid model blessed with innovative technology. Among all its features, the QuietClean ifD filter is the most interesting one. The permanent ifD filter is quoted to have a 99.9% filtration efficiency and can be reused over and over again. If that is the case, will the filter stand out in this fearsome and competitive industry? Let’s find out.
online price (US)**
±239.99 $$$$/ 7

(annual filter cost ±0)

** 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.

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)
Airflow speed
Dust free (CADR)160 cfm (272 m3/h)
Pollen free (CADR)170 cfm (289 m3/h)
Smoke free (CADR)161 cfm (274 m3/h)
Humidifying(H) 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 usage level
Timer/ Scheduler1, 2, 4, 6, 8, 10, 12 hours
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty5 years
Email/ Phone support

Key Features

  • 3-stage permanent filtration
  • 2 pre-filter options - Washable foam pre-filter or odor & gas reducing pre-filter
  • Permanent QuietClean ifD filter
  • Optional on/off Oscillation
  • 5 cleaning mode - SLEEP (almost silent operation), GERM (cold flu season), GENERAL cleaning, ALLERGEN (peak allergen season), 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

Design and Usability

Unmistakably Honeywell, AirGenius 5 has a standout black housing with 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. Surrounding HFD320 is the airflow grille with air coming in from the rear and exit through the front. Build quality is good with a sleek tower body that allows quick filter installation.

Honeywell AirGenius 5 HFD320

Continue with the premium touch screen control. There are 5 operable controls including a dedicated power button. Starting with the 5 cleaning setting. Level 1 is Sleep mode where you will use it during night time for silent operation. Level 2 is Germ mode where it will slow down air movement, forcing the germs to dwell longer in the filter. Best used during cold and flu season. Level 3 is General mode: the default setting each time you turn on the air purifier. Level 4 is Allergen mode where the speed is set to captures allergens like pet dander, mold, and pollen. Best used during the spring and fall where allergens outbreak is high. Level 5 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 and off. Oscillate will gently rotate the purifying from side to side to increase circulation. Above the Oscillate button is the Accent Light that will 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 and after you have cleaned the filter.

Let’s recap on the spec again. You have the permanent 3-stage filtration with 5 cleaning mode. Optional Oscillate, Accent Light, timer, and electronic filter gauge. Finally, AHAM/ ARB certified (ozone emission), Energy Star rated and 5 years warranty.

Airflow, Coverage, And CADR

For a permanent tower air purifier, Honeywell AirGenius 5 has a pretty remarkable 250 sq. ft. purifying coverage. The consistent airflow distribution is spread across the 5 cleaning mode. Choose either from SLEEP, GERM, GENERAL, ALLERGEN or MAX Cleaning setting. Needless to say for more comprehensive cleaning, go with the MAX Cleaning mode. There is no Auto purifying or Eco mode but that should not stop you from placing HFD320 in the bedroom. Most filterless air purifier will skip the CADR test. Honeywell AirGenius does not. Clean air delivery rate is equally impressive for its class. You have the dust CADR at 160 cfm, pollen CADR at 170 cfm and smoke CADR at 161 cfm. None passed the 200 cfm bar set by us but it would have no problem covering large to fine particles.

Filters And Performance

Let's start with the washable pre-filter. Designed to be reusable and for non-smoke, large particles capturing. For smoke particles, opt for the odor-reducing pre-filter that requires a change every quarterly. Switching to the main "dish, the QuietClean ifD tech with 99.9% kills efficiency on allergens as small as 0.3 microns. This patented filter is perfect to target the pesky airborne microorganisms and germs. Right at the end, there is an electronic ionizer that charges air particles to fall to the air purifier. The whole purification cycle works reasonably well although it's incomparable against traditional HEPA. Another thing to note. Since it is filter based, you would need to regularly clean the filter to prevent dust from clogging up.

Noise And Energy Usage

AirGenius 5 QuietClean technology generates little noise particularly in the first 3 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 still bearable. Power usage is considerably low too even without any energy-management system. The official statement from Honeywell that it uses less than a light bulb energy. We have not tested it yet but the usage figure should not be too far off.
Noise TypeDecibels
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

Reasonable price tag after online discount. Honeywell AirGenius 5 would fall under the inexpensive price bracket but at the way end. With the washable pre-filter and ifD filter, HFD320 won't cost you any dime upon purchase. Even if you do opt for the odor-reducing pre-filter upgrade, at most +- 64 would be the annual filter replacement cost.
You can find Honeywell AirGenius 5 in Target, BestBuy, Walmart or 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. They always have the best deal, free shipping (Amazon choice), and 30 days return policy. Best of all, you don't need to register an account again since everyone will have an Amazon account.

Final Thoughts On Honeywell AirGenius 5 HFD320

If you need a hassle-free air purifier to kick start your journey to cleaner air, this is the one. 74% of the users gave it 4-5 stars rating because they like the no filter replacement setup. They also agreed on the filtration efficiency against microbes allergens. Few people are happy with the pricing. The rather high 19% that dislike the air purifier complains on many things. Mostly on the poor build quality that broke down after 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 mentioned. In any case, you have the 5-years warranty standing by if anything goes wrong.


  • Sleek, airflow resistance tower design that is modern and practical.
  • Support either permanent, washable pre-filter or odor-reducing pre-filter. Our votes go to the odor-reducing pre-filter.
  • Practically no annual filter maintenance cost as the ifD is reusable.
  • 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.


  • Loses out to traditional media filtration on effectiveness. Smoke and odor filtration efficiency is not great either.
  • The permanent filter requires regularly clean up to prevent particle congestion.

Verdicts And Ratings

Build Quality



Particle Filtration

Smoke Filtration


Filter Cost



Honeywell AirGenius 5 HFD320 Air Purifier review

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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