Philips HU4801/01
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According to our humidifier expert
The Philips HU4801/01 can humidify the air in spaces up to 25m². It does that by passing the air past a humidifying filter and into the water tank. To humidify the air, you can choose from 2 speed settings. For example, you can choose the lowest setting when the humidifier is in the bedroom and the highest when the humidity drops below 40%. When the water tank is empty, the device will switch off automatically and a red indicator light will switch on. Refilling the water tank is very easy: simply remove the lid and hold the tank under the faucet until it's full. With a full tank, the humidifier can last up to 8 hours.
Note: for an optimal performance, you need to clean the humidification filter on a weekly basis and replace it once per year.
Type of humidifier | Cool mist humidifier | |
|---|---|---|
Maximum humidifiable surface | 25 m2 | |
Minimum adjustable humidity | 0 % | |
Maximum adjustable humidity | 0 % | |
Minimum noise level | 26 dB | |
Maximum noise level | 59 dB | |
Hygrometer | ||
Humidistat |
5 stars
15
4 stars
19
3 stars
2
2 stars
1
1 star
0
For the record; square meters has nothing to do with humidification. What matters is the amount of ventilation. Small calculation;
Outside it is 5 degrees Celsius with 70% relative humidity [RH, %]. That corresponds to ~3.8 grams of water per kg of air [X, g/kg] . Inside, this air is heated to 20 degrees Celsius; the X value remains the same at ~3.8 g/kg, but warm air can contain more moisture, so the RH value drops to about 25%.
The relevant room has mechanical ventilation that extracts 50 cubic meters of air every hour. At 20 degrees Celsius, this corresponds to approximately 60 kg. To get the air at 50% RH at 20 degrees Celsius you have to go to an X of 8.5 g/kg. Water is 1 kg/Litre.
How much should you add via a humidifier? 60 kg per hour * (8.5-3.8) = 282 grams of water.
Conclusion; do you indeed have 50 cubic meters / hour of extraction ... well, then you will not reach the 50% with only (persons also give moisture to the air) this device. For example, if you only have 20 cubic meters per hour of extraction, yes, then you can probably achieve 50% RH.
The amount of mL per hour that this device helps into space is given as a single value, but that is a huge simplification. More water evaporates if the unused capacity (X,max - X,current) is greater. So it's a kind of self-inhibiting effect.
Coolblue's 0.15 L/hour specification can be achieved. In practice, it achieves 0.14 L / hour for me, if you heat it just a bit warmer and/or the air is slightly drier outside, then that 0.15 can still be exceeded.
The above simply explains most of the mixed reviews about humidifiers in general.
Anyone who can calculate this themselves can search on; "h-x diagram air".
Then the second clarification; this device is touted as energy efficient, which is absolutely true. However, the evaporation of the water costs energy, this energy is extracted from the air, which therefore becomes colder. So your heating has to work harder to keep it at the same temperature. This can be partly compensated by setting the thermostat a little lower, which is also possible while maintaining comfort because increasing the humidity increases the perceived temperature.
As for my own experience with this device; If you run it continuously on 'high', the water tank is too small to last 24 hours. However, a larger tank would have other drawbacks. The higher humidity works wonders in terms of irritation to the respiratory tract and eyes. Dried out lips are also a thing of the past. Static electricity also decreases. Delicious! I should have bought this thing a few years ago. What is regrettable, however, are the blue status LEDs on top. Hi Philips... you recommend this product for the bedroom, what should I do with blue LEDs? Fortunately, the top is such that you can put a sock (or something similar) on top. Alternatively, you can of course also run the black marker over the diamonds above the LEDs.
In terms of futuristic design, this thing fits well with a Philips Wake-up light.
Techneut
20 February 2017
Automatically translated from Dutch
does what it was purchased for... an office with little natural and mechanical ventilation provided with clean and humidified air.
Sem Holtkamp
2 March 2016
Automatically translated from Dutch
First we had to put it in a room that was really too big (living room/kitchen) and it already got 45%, pretty quickly, no more than a few days. Now he is in the office and he easily gets 50% there. We didn't have to wait long for this. Very easy to refill. Filters are not that expensive because you don't have to buy many. After all, you can clean them yourself from time to time.
Disadvantage or advantage according to what you like is that there is a COLD STREAM blowing through the room. I am a cold person and absolutely do not tolerate this, if it is on a low setting it is little and I still find it annoying. My wife is too warm everywhere and is happy with this. But for me there will be a steam humidifier in the living room!
I did not find it necessary to choose the more expensive model. This one is much cheaper and works very well. A timer isn't worth the price difference to me. I did buy a hygrostat separately, I find it easier so I can measure everywhere.
Thierry
6 January 2017
Automatically translated from Dutch
Product number | 654168 | |
|---|---|---|
Manufacturer code | HU4801/01 | |
Brand | Philips | |
Warranty | 2 years | |
Processing of your defect | Via Coolblue |
Type of humidifier | Cool mist humidifier | |
|---|---|---|
Minimum adjustable humidity | 0 % | |
Maximum adjustable humidity | 0 % | |
Minimum noise level | 26 dB | |
Maximum noise level | 59 dB | |
Hygrometer | ||
Humidistat |
Maximum humidifiable surface | 25 m2 | |
|---|---|---|
Maximum humidifiable space | 63 m³ |
Ionization function | ||
|---|---|---|
Suitable for fragrance oils | ||
Display | ||
Mobile | ||
Replaceable filter | ||
Auto shut-off | ||
Compatible with smartphone / apps |
Timer | ||
|---|---|---|
Night mode | ||
Automated descaling program | ||
Overheating protection |
Removable water tank | ||
|---|---|---|
Clean water tank indicator | ||
Water level indicator | ||
Capacity | 2 l |
Air purification |
|---|
Power supply type | Power grid |
|---|---|
Connection voltage | 220 V |
Width | 24,9 cm | |
|---|---|---|
Depth | 24,9 cm | |
Height | 33,9 cm | |
Weight | 1,36 kg | |
Color | White | |
Material | Plastic |
