Honeywell AirGenius 5 HFD320 review: I Ain’t Paying Anything More!
Honeywell AirGenius 5 HFD320 Specification
Product | Honeywell AirGenius 5 HFD320 |
Dimension | 11.5 x 29 x 11.5 in (29.2 x 73.7 x 29.2 cm) |
Weight | 14 lb (6.4 kg) |
Fanspeed | 5 |
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) |
Filtration | 3-stage |
Pre-Filter - Lifespan - Replacement cost ($) | Washable Pre-filter |
HEPA filter - Lifespan - Replacement cost ($) | - |
Carbon filter - Lifespan - Replacement cost ($) | - |
Ionizer/ Technologies | Electronic Ionizer |
UV-light/ PCO | - |
Other filter | ifD Micro-Filter Permanent |
All-in-one filter - Lifespan - Replacement cost ($) | - |
Optional/ Addon | HRF-K2 Filter K Household Odor & Gas Reducing Pre-filter (2 pack) 3 months+- 15.95 |
Noise level | |
Power usage level | |
Timer/ Scheduler | 1, 2, 4, 6, 8, 10, 12 hours |
Sensors | |
Auto mode | |
Air qualityAQ indicator | |
Filter change indicator | |
More color options | |
Wi-Fi/ BTBluetooth | |
ENERGY STAR | |
Remote control | |
Child lock | |
Warranty | 5 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
Pros
- 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.
- 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.
Cons
- Loses out to traditional media filtration that tends to have stronger filtration. Smoke and odor filtration efficiency is not great either.
- The permanent filter requires regularly clean up to prevent particles congestion.
The starters
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.

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, speed, and CADR
What’s inside count
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.Keep it down
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.At what cost
^ Replacement filters/ estimated cost
Honeywell AirGenius 5 HFD320 VS the challengers

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, there is the high filter maintenance cost that will come back and haunt you annually.
Airfree Onix 3000
Another filterless, no maintenance air purifier that you could also consider. Both use different patent technologies with Airfree Thermodynamic TSS VS Honeywell ifD filter. It has the advantage of wider purifying coverage but the trade-off is a much slower purifying.
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), and Advanced timer, everything else is exactly the same.