Honeywell AirGenius3 HFD300

Honeywell AirGenius 3 HFD300 review

While not the latest model from AirGenius series, Honeywell AirGenius 3 HFD300 is the weakest among the bunch although that doesn’t says a lot considering how good AirGenius series is. Integrated with the same technologies and excellent QuietClean ifD filter, Honeywell AirGenius 3 manage to outperform most of its closest tower air purifier however, competing against Honeywell AirGenius 4 and 5, how well will this touted weaker Honeywell HFD300 AirGenius 3 air purifier fare?
± 219.95 p
     Annual filter ^    
± 0 p
Online price*
Latest Amazon price

Honeywell AirGenius 3 HFD300 Specification

ProductHoneywell AirGenius 3 HFD300
11.5 x 29 x 11.5 in
(29.2 x 73.7 x 29.2 cm)
Weight13.5 lb (6.1 kg)
Coverage (up to)225 sq. ft. (21 m2)
Dust free (CADR)150 cfm (255 m3/h)
Pollen free (CADR)160 cfm (272 m3/h)
Smoke free (CADR)146 cfm (248 m3/h)
Airflow speed
- Lifespan
- Replacement cost ($)
Washable Pre-filter
HEPA filter
- Lifespan
- Replacement cost ($)
Carbon filter
- Lifespan
- Replacement cost ($)
Ionizer/ TechnologiesOscillation
UV-light/ PCO
Other filter
ifD Micro-Filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
HRF-K2 Filter K Household Odor & Gas Reducing Pre-filter (2 pack)
3 months+- 15.95
Noise level
Power consumption
Timer/ Scheduler
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 3 HFD300 key features

  • 3-stage filtration
  • 2 pre-filter options - permanent washable foam pre-filter or odor & gas reducing pre-filter
  • Permanent QuietClean ifD filter
  • Optional on/off Oscillation
  • 3 speed controls with filter check button
  • 5 years limited warranty

Honeywell AirGenius 3 HFD300 review

  • Sleek honeycomb style tower design.
  • Works either with permanent pre-filter or Odor reducing pre-filter (with optional upgrade).
  • Zero annual maintenance cost.
  • Effective QuietClean ifD technology ifD filter against microscopic household allergens.
  • Smart controls with optional oscillation and Filter Check reminder.
  • 5 years warranty.
  • Price is close to AirGenius 4 and 5 with less speed, timer, filter change gauge and weaker overall performance.
  • Incomparable with traditional filter HEPA media filtration efficiency.
  • Permanent filters requires regularly vacuuming to free up space from the airborne particles.

The starters

Honeywell AirGenius 3 HFD300 dimension
11.5 x 29 x 11.5 in
(29.2 x 73.7 x 29.2 cm)
Honeywell AirGenius 3 HFD300 weight
13.5 lb (6.1 kg)

The older and so called “entry-level” to AirGenius series, Honeywell AirGenius 3 HFD300 shares many design element similarities and specification than you would expect no less from Honeywell. At 11.5 x 29 x 11.5 in (29.2 x 73.7 x 29.2 cm) dimension and 13.5 lb (6.1 kg) weight, Honeywell AirGenius 3 HFD300 has the exact same size as it’s compatriot. While the large honeycomb style filter and flask wide bottom design retains, it is the odd one out with white housing as oppose to black. At top you’ll have the usual control placement for pre-set timer, Electronic Filter Check reminder light and fan mode adjustment (only 3 speed). Other than that Honeywell AirGenius 3 HFD300 is every bit as AirGenius as other higher range models with 3-stage filtration, AHAM and ARB certified, Energy Star certified and 5 years warranty.

Honeywell AirGenius 3 HFD300 airflow, speed, and CADR

Honeywell AirGenius 3 HFD300 coverage
Purifying coverage
225 sq. ft. (21 m2)
Honeywell AirGenius 3 HFD300 fanspeed
As an entry-level to the series, Honeywell AirGenius 3 HFD300 airflow delivery rate is actually pretty OK for a permanent air purifier. Limit to 3 speed, you can set the speed to either Sleep, General Clean or Max. On the other hand, the 225 sq. ft. purifying coverage is relatively small thus Honeywell AirGenius 3 HFD300 probably best suited for small to medium room size such as bedroom.
Honeywell AirGenius 3 HFD300 dust CADR
150 cfm (255 m3/h)
Honeywell AirGenius 3 HFD300 pollen CADR
Pollen CADR
160 cfm (272 m3/h)
Honeywell AirGenius 3 HFD300 smoke CADR
Smoke CADR
146 cfm (248 m3/h)
Honeywell AirGenius 3 HFD300 CADR return is no doubt the weakest in its series at only 150 cfm for dust, 160 cfm for pollen and 146 cfm for smoke. You can also compare between AirGenius 4 and 5 via the link above.

What’s inside count

Honeywell AirGenius 3 HFD300 Pre-filter
Washable Pre-filter
Honeywell AirGenius 3 HFD300 technologies
Honeywell AirGenius 3 HFD300 other filters
ifD Micro-Filter
^ Honeywell AirGenius 3 HFD300 filters/ technologies/ lifespan
Honeywell AirGenius 3 HFD300 patented QuietClean ifD technology is what this air purifier is all about. With no filter replacement ever needed, the first stage permanent pre-filter could easily trap large particles like dust, hair while the ifD filter would handle microscopic bacteria and allergens as small as 0.3 microns. For stronger odors and toxic chemicals, you have the option to switch to the premium odor reducing pre-filter although the filter require quarterly replacing. As for all permanent filter, regular maintenance is needed to prevent the filter from being congested by particles.

Covered against

Honeywell AirGenius 3 HFD300 VS Dust



Honeywell AirGenius 3 HFD300 VS Pollen



Honeywell AirGenius 3 HFD300 VS Hair

Hair/ Pet hair


Honeywell AirGenius 3 HFD300 VS Dust mite

Dust mites


Honeywell AirGenius 3 HFD300 VS Mold/ Mildew

Mold/ Mildew


Honeywell AirGenius 3 HFD300 VS Pet dander

Pet dander


Honeywell AirGenius 3 HFD300 VS Virus/ Germ

Virus/ Germ


Honeywell AirGenius 3 HFD300 VS Tobacco smoke

Tobacco smoke


Honeywell AirGenius 3 HFD300 VS Chemical



Honeywell AirGenius 3 HFD300 VS VOCs



Honeywell AirGenius 3 HFD300 VS Smoke/ Gas

Smoke/ Gas


Honeywell AirGenius 3 HFD300 VS Odor



Honeywell AirGenius 3 HFD300 3-stage filtration and purifying applicable area is spectacular when pit against allergens, bacteria and viruses. It is vastly efficient on large-scale airborne contaminants e.g. dust, hair, pet hair. However against small scale contaminants, Honeywell AirGenius 3 HFD300 3 speed airflow circulation + is distinctive at trapping dust mites, pollen, mold, spores, mildew, fungi, germs and pet dander.  On smokes and odors, Honeywell AirGenius 3 HFD300 filtration is weak in dealing chemicals, cooking odors, detegent odors, VOCs, tobacco smokes, cigarette, radon and ammonia.

Keep it down

It might comes with a weaker airflow distribution, Honeywell AirGenius 3 HFD300 noise level is actually very similar to other AirGenius models. As usual, noise is virtually silent at speed 1 (sleep mode) and audible but not to intrusive at speed 3. Same goes with power consumption, it's at low to reasonable rate (less than a lightbulb) depending on what speed you are operating.

At what cost

Honeywell AirGenius 3 HFD300 MRSP/ RSP
+- 219.95
Honeywell AirGenius 3 HFD300 annual filter replacement cost
Annual Filter Cost
+- 0
^ Replacement filters/ estimated cost
With a weaker airflow performance and coverage, Honeywell AirGenius 3 HFD300 is the cheapest in its AirGenius series although not by a whole lot. You still get to enjoy zero annual maintenance via the permanent filters but we strongly recommend opt for the higher spec Honeywell AirGenius 4 or 5 model that offers better performance VS value return.

Honeywell AirGenius 3 HFD300 VS the challengers

Honeywell AirGenius 4 HFD310

Honeywell AirGenius 4 HFD310

Slightly expensive but comes with 4 speed, better airflow performance, coverage and timer.
Honeywell AirGenius5 HFD320

Honeywell AirGenius 5 HFD320

Even more expensive but with best in-class CADR, purifying coverage and 5 speed airflow distribution.

Verdicts and ratings

Build quality
Airflow delivery
Particle Filtration
Smoke Filtration
Honeywell AirGenius3 HFD300

Frequently Asked Questions FAQ


Safety Tips

More on Honeywell HFD300 AirGenius 3

The most obvious difference between the rest of AirGenius series is the white color body. Honeywell HFD300 AirGenius 3 air cleaner uses the same platform as the rest with the same overall dimension. Its tall but stable with a wide flat bottom and a firm weight. On top of the air purifier you will find a touch sensitive controls that features Honeywell Smart Controls 3 air cleaning selection mode. Covering the middle part of the body is the large honeycomb style filter that smoothen the airflow circulation thus reduce the noise level. On the whole the build quality Honeywell HFD300 AirGenius 3 is top-notch and highly durable.

Airflow performance and applicable area

The highlight is non-other than the Honeywell permanent advanced ifD filter. With the linkage between pre-filter, oscillation and ifD filter, Honeywell HFD300 AirGenius 3 will tackle up to 99.9% of microscopic airborne pollutants within the applicable area of 21 m2 (225 sq. ft.). Honeywell HFD300 AirGenius 3 CADR is slightly lower but still stands at an impressive 150 cfm for dust, 160 cfm for pollen, and 146 cfm for smoke. Noise level sound is low thanks to its honeycomb filter while power consumption is also low too.

Final thoughts on Honeywell HFD300 AirGenius 3

Other than the weaker airflow delivery rate and CADR, Honeywell HFD300 AirGenius 3 is pretty much the same air purifier as the rest of its series. It has the same body structure, same set of controls, same pre-filter and same permanent ifD filter. With all of the above features bundled, Honeywell HFD300 AirGenius 3 is still the air purifier that we would recommend. If you are in the market for a tower air purifier and not sure which unit to get, always go with the one that offers the best deal.

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