Air purifiers have become essential for maintaining healthy indoor air quality, especially for people with allergies or asthma. When selecting an air purifier, itâs crucial to consider the size of the room to ensure effectiveness; a unit should ideally be rated for a larger area than the space it will serve. Key metrics include clean air delivery rate (CADR) and air changes per hour (ACH), with at least 45 ACH recommended for those with sensitivities. Filters vary from True HEPA, capturing 99.97% of particles, to activated carbon filters that absorb odors, enhancing the purifier's overall efficacy.
When choosing the right air purifier model, consider room size to ensure effectiveness, as smaller purifiers won't adequately filter larger spaces, especially with high ceilings.
The clean air delivery rate (CADR) measures how quickly an air purifier filters pollutants, while air changes per hour (ACH) indicates how often it can filter your space.
True HEPA filters capture at least 99.97% of particles down to 0.3 microns, making them essential for effective air purification and ideal for allergy sufferers.
Activated carbon filters enhance air purifiers by absorbing odors and pollutants not trapped by HEPA filters, though they are often an optional feature.
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