For a small room, almost any air purifier will suffice, but for a large or open space, the choice becomes significantly more important. A device not designed for the volume of the room must run continuously at its highest setting just to make any difference. In this article, we explain what you need for larger spaces.
What makes a room "large"?
By a large space, we generally mean floor areas of approximately 40 to 55m² or more—think of a spacious living room, an open-plan kitchen, a loft, or a living room that is openly connected to the kitchen and possibly the hallway. A high ceiling also increases the effective air volume, even if the floor area remains the same.
Why capacity is crucial here
The CADR (Clean Air Delivery Rate) determines how much air an air purifier can refresh per hour. In a small room, even a compact model produces results within a reasonable time, but in a large room with much more air volume, this takes considerably longer with an undersized device. The result is that the device must run more often on its highest, loudest setting to be effective, which also increases energy consumption and filter wear.
What to look for in a large space
- Choose an air purifier with a maximum m² value that is clearly above the actual surface area of your room.
- Look for a high CADR value, as this determines how quickly the device can refresh the air.
- Take open connections between rooms and high ceilings into account, as these increase the effective volume.
- For very large or elongated spaces, consider using two devices instead of one large model so that the airflow is better distributed throughout the room.
- Also, check the noise level at the setting you are likely to use most; a device that has to work hard continuously is simply more audible.
Our advice
We recommend being slightly over-prepared rather than under-prepared when dealing with a large space. Our advice is to measure the square meters of your room (including any open connections) and compare this with the maximum capacity of the device. The Dynter AirPure Plus PA244 has a CADR of 260m³/h and is suitable for rooms up to 55m², giving the model sufficient capacity even in a spacious, open living room or kitchen to remain effective at a moderate setting, rather than having to run at full power continuously. For extremely large or elongated spaces, a second device may be wise.
Are you unsure whether your room falls within the range of a device? Check the specifications of the AirPure Plus PA244 and measure your room before making a choice.