Product Price Clean Air Delivery Rate (cfm) Clean Air Delivery Rate (CADR) (cubic feet per minute) HEPA Filter Efficiency Level (%) Ionizer Function Coverage Area (square feet) Noise Level (decibels)
Alen BreatheSmart 45i Pure Ionic Air Purifier
US
£346.18 800 23-49 dB

The Alen BreatheSmart 45i combines H13 medical-grade True HEPA filtration, an optional ionizer, automatic air-quality sensing, Wi-Fi control, and soothing pink noise. It suits bedrooms and other rooms up to 800 sq ft, especially for allergy sufferers who want quiet operation.

★ Ideal for

It suits someone seeking a quiet air purifier with an ionizer because it combines an optional ionizer with a 23-49 dB noise range and pink-noise operation for less intrusive sound.

Alen BreatheSmart 75i Fresh Ionic Air Purifier
US
£591.04 1400 to 2800 51

The Alen BreatheSmart 75i Fresh combines True HEPA H13 filtration, activated carbon for odors and pollutants, an ionizer, smart air-quality monitoring, and app control. Its high airflow and large coverage make it suitable for large rooms, while its low maximum noise rating suits users who want quiet continuous operation.

★ Ideal for

It suits people seeking a quiet air purifier with an ionizer because it includes ionizer technology, operates at a listed maximum of 51 dB, and provides up to 375 CFM of airflow for large rooms.