What are the quietest whole house air purifiers available?
This page compares 2 whole house air purifiers with verified specifications and prices. Top options include Alen BreatheSmart 25i, Alen BreatheSmart FLEX. Prices range from £132 to £287. All data is sourced from manufacturer documentation and specialist retailers.
| Product ⇅ | Price ⇅ | Coverage Area (sq ft) ⇅ | Air Changes per Hour (times/hour) ⇅ | Filter Types ⇅ | Max Particle Size Capture (PM) ⇅ | Energy Consumption (watts) ⇅ | Noise Level (dB) ⇅ |
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Alen BreatheSmart 25i
US
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£132.21 ≈ | 400 | 5 | Essential HEPA, Advanced HEPA with carbon, Ultimate HEPA with odor neutralizer | — | 0.8 to 20 | 20 to 40 |
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The Alen BreatheSmart 25i is a compact, Wi-Fi-enabled air purifier designed for bedrooms, nurseries, home offices, and other small spaces up to 400 square feet. It offers HEPA-based filtration, optional carbon and odor-neutralizing filter choices, automatic air-quality sensing, and quiet operation from 20 to 40 dB. ★ Ideal forIt suits people seeking one of the quietest whole house air purifiers available because its noise level ranges from just 20 to 40 dB, while its HEPA filtration captures particles as small as 0.1 micron. |
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Alen BreatheSmart FLEX
US
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£286.59 ≈ | 700 | 2 | True HEPA H13 Pure, Fresh, and Odor filters | — | 0.8-50 | 25-50 |
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The Alen BreatheSmart FLEX covers rooms up to 700 square feet and uses True HEPA H13 filter options to capture airborne particles larger than 0.1 micron. Its WhisperMax pink-noise operation, compact design, and lifetime guarantee suit bedrooms, home offices, allergy sufferers, and other medium-sized living spaces. ★ Ideal forIt suits people seeking quiet whole-house air purification because it operates at 25-50 dB, uses soothing pink noise, and can clean 700 square feet every 30 minutes.
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