Yes, you can use a dehumidifier and an air purifier at the same time. They do two different things and do not interfere with each other. The dehumidifier removes moisture from the air, while the air purifier filters dust and other particles. Do place them some distance apart so that both can freely draw in and expel air.
Direct answer: a dehumidifier and an air purifier can easily run at the same time in the same room, because one removes moisture and the other filters particles from the air.
What does each device do?
A dehumidifier reduces humidity. The collected water goes into a tank. An air purifier draws air through filters and removes particles, such as dust. An air purifier therefore does not make the air drier, and a dehumidifier does not filter particles from the air. You can find the difference explained in our article air purifier versus dehumidifier.
Because they have different purposes, using them at the same time is not unusual. If you have a damp room and also want to reduce dust, the two devices will each tackle their own task. If you only have one of these problems, a second device is usually not necessary.
When is it a good idea to use them together?
Using them together makes the most sense in a room with both a moisture problem and dust or airborne particles. Think of a bedroom that feels damp in the morning, or a living room in an old house. If there is nothing in the room that causes moisture, you do not need the dehumidifier. Milieu Centraal states that dehumidifiers only work in a small, enclosed space where no new moisture enters, that they use a lot of electricity, and that they do not replace ventilation; see ventilating your home.
Therefore, always tackle the cause of the moisture first: ventilate, dry the walls after showering, and dry laundry outside as much as possible. The dehumidifier is a tool, not a solution for a source of moisture.
How to position them properly?
Do not place either device directly against the other or against a wall. Leave enough space around them so that they can freely draw in and expel air, and follow the instructions in the manual of each device. Place the dehumidifier on a flat surface and in the same room where you want to tackle the moisture, with the doors and windows closed while it is running. An air purifier works better when the air can circulate well through the room, so do not cram it into a corner.
How much does it cost and how long should you run them?
A dehumidifier does not need to run 24 hours a day. With a timer or set humidity level, it only runs when necessary. You can read how to set this in how long a dehumidifier should run per day. An air purifier often runs longer, on a low setting.
| Device | Task | Power (Dynter) |
|---|---|---|
| Dehumidifier DH251 | Remove moisture from the air | 80 W |
| Air purifier PA244 | Filter particles from the air | 45 W |
Together that comes to 125 watts, or 0.125 kWh per hour if both run continuously. Based on an assumption of 30 cents per kWh, that is approximately 3.75 cents per hour. Calculate using your own electricity price. In practice, the dehumidifier often runs intermittently, so the actual consumption is usually lower.
Dynter DH251 and AirPure Plus PA244
The Dynter DH251 dehumidifier and the Dynter AirPure Plus PA244 air purifier complement each other.
DH251 dehumidification: up to 900 ml per day, 3800 ml water tank with safety sensor
DH251 suitable for: rooms up to 55 m², timer from 1 to 24 hours, night mode
PA244 filtration: 4-stage filtration system with HEPA 13 filter that captures at least 99.95 percent of particles according to European standard EN 1822
PA244 capacity: CADR 260 m³/h, suitable for rooms up to 55 m²
PA244 usage: 45 W, three fan speeds, automatic mode, touch display and sleep mode; noise 28 to 60 dB
PA244 filter: replaceable, after 6 to 8 months. You can order the HEPA 13 replacement filter separately.
The actual performance of an air purifier may be lower than the theoretical filter performance, because it depends on room size, placement, and usage. An air purifier is not a medical treatment and does not replace medical advice. If you have health complaints, consult your general practitioner.
Do you want to get both in your home? View the dehumidifier collection and the air purifier collection. Read more about the duration of use in how long an air purifier should run.
Frequently asked questions
Can a dehumidifier and air purifier be in the same room?
Yes. Do leave space around both devices and do not place them against each other, so that they can freely draw in and expel air.
Do I need both?
Only if you have both a moisture problem and issues with dust or particles. If you have one of the two problems, one device is often enough.
Does an air purifier make the air drier?
No. An air purifier filters particles from the air, but does not change the humidity. For moisture, you need a dehumidifier.
Can a dehumidifier solve moisture in the home?
Not always. Milieu Centraal states that it does not remove the cause and does not replace ventilation. Therefore, also tackle the source of the moisture.