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De’Longhi HFX85W20C air purifier heater and fan (Australian review - update 11 August 2019)
4.1Overall Score
Name: De'Longhi Air purifier heater and fan HFX85W20C
Price (RRP): $549 but shop around
Manufacturer: De'Longhi

The De’Longhi HFX85W20C Air purifier heater and fan is a terrific addition to any home. It is a fan, heater and air purifier all-in-one.

I wrote that precisely 12 months ago (11/08/18) and we ended up buying a De’Longhi HFX85W20C air purifier heater and fan for our Central Coast home.

The bottom line it has become an integral part of #stopping the energy rip-off. So, I decided to revisit this review and tell you why a $549 air purifier, heater and fan – the De’Longhi HFX85W20C – achieves that. It is far more useful than that description belies.

Why? Even if you have ducted or split-system air-conditioning using the De’Longhi HFX85W20C is far more economical because of two things.

First, it creates a micro-climate zone up to 5 x 5 metres. That is perfect for heating say, the TV viewing area in a large open space lounge/kitchen/dining area. While the temperature outside that micro-climate zone may plummet to 11-15°, inside the invisible zone it is a nice 20-22°. And the Coanda effect (explained later) means there is no direct blast of air on your face.

Sure you have to set it at 22-25° (max 28°) and put the fan setting on 4-5 (maximum 10) but even at this level it is not consuming the full 2000W – more around 1300-1800W and for a few hours pleasure it is worth it. And, you are not heating the rest of the unused area meaning big savings.

Second, and perhaps the most underrated feature is the Eco setting which is perfect for up to large, closed-in bedroom spaces. We set it at 19° (ideal sleeping temperature) and fan on 1 and Eco does the rest, ever so quietly coming on occasionally to top the temperature up. Cost – a measly few cents for a good sleep. And as it is a heater it does not dry the air out like AC can.

What is the De’Longhi HFX85W20C air purifier heater and fan?

Australian website here.

Air purifier heater and fan HFX85W20C

The best way to describe it is a somewhat modern looking column style device. It is 850 (tall) x 270m (round) and 7.4kg.

At first glance, you see the perforated top section. That is where the air is drawn in through the 360° EPA filter.

Next, you wonder where the air comes out. Well here is the thing – there are no ugly louvres. Air is forced out the discrete rear ‘slits’ and focuses around the columns ‘waist’. This creates a Coanda effect where the air flowing out of the slits past the waist picks up additional air and spreads outwards. In simple terms, it does not have huge fan blades and louvres to achieve the same effect. There is no draft blowing in your face. De’Longhi calls this a 3D Comfort Air technology.

Finally, there is the remote control and control panel. It is straightforward. On/off, heat, temperature, cool, fan speed, timer (up to 12 hours), ECO, oscillation (where the column gently turns left/right and vice versa), and airflow direction (you can tilt airflow up or down without tilting the column.)

So how does it work?

This is a combined purifier/heater/fan. We will look at each function separately.

360° (round) EPA Filter

Air purifier heater and fan HFX85W20C

It traps up to 99.9% of particles down to 2.5µm (that is 0.0025mm – a human hair is 50-70µm). OK, it won’t soak up volatile gasses – only activated carbon will. But it will catch fungal spores, bacteria, pet dander, hairspray, dust mite waste, pollen and even tobacco smoke. Hay fever sufferers should rejoice – 3µm or larger particles trigger attacks.

EPA filters can last years before replacement. The unit display will flash ‘CF” (Clean Filter) when its time. De’Longhi state the CF warning occurs at about 2,000 hours (9 months x 8 hours a day).