Honeywell AirGenius 3 HFD300 review: Get The New One!
Honeywell AirGenius 3 HFD300 Specification
Product | Honeywell AirGenius 3 HFD300 |
Dimension | 11.5 x 29 x 11.5 in (29.2 x 73.7 x 29.2 cm) |
Weight | 13.5 lb (6.1 kg) |
Fanspeed | 3 |
Coverage (up to) | 225 sq. ft. (21 m2) |
Airflow speed | |
Dust free (CADR) | 150 cfm (255 m3/h) |
Pollen free (CADR) | 160 cfm (272 m3/h) |
Smoke free (CADR) | 146 cfm (248 m3/h) |
Filtration | 3-stage |
Pre-Filter - Lifespan - Replacement cost ($) | Washable Pre-filter |
HEPA filter - Lifespan - Replacement cost ($) | - |
Carbon filter - Lifespan - Replacement cost ($) | - |
Ionizer/ Technologies | Oscillation |
UV-light/ PCO | - |
Other filter | ifD Micro-Filter Permanent |
All-in-one filter - Lifespan - Replacement cost ($) | - |
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 | |
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 filtration
- 2 pre-filter options - Washable foam pre-filter or odor & gas reducing pre-filter
- Permanent QuietClean ifD filter
- Optional Oscillation mode
- 3 speed controls with filter check button
- 5 years limited warranty
Pros
- Sleek honeycomb style tower design.
- Works either with permanent pre-filter or Odor-reducing pre-filter (optional upgrade).
- Zero annual maintenance cost.
- Effective QuietClean ifD filter that is proven against microscopic household allergens.
- 5 years limited warranty.
Cons
- Price is close to AirGenius 4 and 5 with less speed, no timer, and no live filter change gauge indicator.
- Weaker overall airflow performance.
- Incomparable with traditional filter HEPA media filtration efficiency.
- Permanent filters require vacuuming to free up space from the dust particles.
The starters
The older and so-called “entry-level” to AirGenius series. Honeywell AirGenius 3 HFD300 shares many design elements and specification from the group. At 11.5 x 29 x 11.5 in dimension and 13.5 lb weight, the air purifier is neither compact or bulky. Going through the slim profile body, you will find a large honeycomb air inlet at the back and air outlet at front. The flask wide bottom design retained for better stability. Overall, fitting is tight but the lack of a bottom accent light is one of the few things you have to compromise.

Let’s begin the controls from left to right. The Check Filters Button allows you to check filter status on single click. If you see the filter status in red color, press and hold the button for 3 seconds to reset the timer. Next, the Purification level button will cycle between Sleep (night use), General (everyday use), and Max (highest fan speed). The power button will turn on or off the air purifier (duh). To the right, Oscillate will activate side to side purifying for better circulation. If you have seen AirGenius 4 or 5 previously, you will notice HFD300 controls is a little bit empty. that is because there is no Light Dimmer button, Timer button and speed are limited to 3 options.
Lets recap on the specification. You have a 3-stage permanent filtration with 3 cleaning setting. Timer, Oscillation, and check filters/ Reset Button. Finally, AHAM and ARB certified, Energy Star rated and 5 years warranty.
Airflow, speed, and CADR
What’s inside count
AirGenius 3 QuietClean ifD technology is what this air purifier is all about. With no filter replacement needed, the pre-filter could easily trap large particles like dust. Next, the patented ifD filter would handle microscopic allergens as small as 0.3 microns. For smoke and chemicals, you have the option to switch to the odor-reducing pre-filter. Do note the filter is non-washable and requires quarterly replacing. There is also an Ionizer at the end that will release ions to merge with airborne particles. This caused the particles to fall from increased weight and the ifD filter will take over from there. As with all permanent filter, regular maintenance is needed (vacuuming only). This would prevent the filter from being congested by contaminants.Keep it down
HFD300 noise level is very similar to other AirGeniuses despite the weaker airflow. As usual, noise is virtually silent at speed 1 (sleep mode) and audible but not too intrusive at speed 3 (Max). Same goes with power usage, it's at low to a reasonable rate depending on the cleaning mode. Technically, it should use less than a lightbulb but we have not tested it on that.At what cost
^ Replacement filters/ estimated cost
Honeywell AirGenius 3 HFD300 VS the challengers

Honeywell AirGenius 4 HFD310
Around the same price (after discount) for better airflow and slightly wider purifying. You also gain 1 additional cleaning mode, light dimmer, and 3 preset timers. Availability wise is better but we will recommend going straight for the top model.
Honeywell AirGenius 5 HFD320
This is the model you should go for. It is widely available, has the best-in-class CADR, and widest purifying coverage. There is also light dimmer, 5 cleaning mode, and 6 preset timer airflow distribution. The best thing is the price is not too far off from HFD300!