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Air purifiers for allergies, 26-30 m2 room, CADR rating 200-299 m3/h, night mode
- Allergy sufferers should use an air purifier that is powerful enough to drag all of the air in the room through the filter a minimum of 4 times an hour (ACH) for it to be genuinely effective. To get around 4 air changes per hour in your room measuring between 26 and 30 m2 you need an air purifier with a clean air delivery rate (CADR) in the range of 200-299 m3/h.
- For a bedroom or baby room, you may want to use a quieter air purifier that comes with "night" mode. Air purifiers with "night" mode run quietly in the background allowing you to enjoy clean air while you sleep.