{"pageUrl":"https://comparethespecs.com/zh/home-living/air-purifiers-climate/what-is-the-quietest-air-purifier-with-ionizer-available","lastUpdated":"2026-09-13","totalProducts":2,"niche":"...","description":"What is the quietest air purifier with ionizer available?","products":[{"brand":"Alen","model":"BreatheSmart 45i Pure Ionic Air Purifier","price_gbp":346.18,"origin_country":null,"specs":{"cfm":"Speed 1: 80 CFM; Speed 2: 120 CFM; Speed 3: 190 CFM; Speed 4: 255 CFM","cadr":"Smoke: 194 CFM; Dust: 207 CFM; Pollen: 230 CFM","ionizer":"Optional ionizer; less than 0.001 PPM ozone when engaged","hepa_filter":"H13 medical-grade True HEPA; 99.9%","noise_level":"23-49 dB","coverage_area":"800"},"confidence_score":null,"sources":[{"label":"Office Depot","url":"https://www.officedepot.com/a/products/8494455/Alen-BreatheSmart-45i-Pure-True-HEPA/","currency":"USD","source_country":"US","price":467.99,"price_gbp":346.18,"scraped_at":"2026-09-08T01:16:25.265297"}],"summary":"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":"适合希望使用带离子发生器且运行安静的空气净化器的人，因为它将可选离子发生器与 23-49 dB 的噪音范围及粉红噪声运行模式相结合，可减少声音干扰。"},{"brand":"Alen","model":"BreatheSmart 75i Fresh Ionic Air Purifier","price_gbp":591.04,"origin_country":null,"specs":{"cfm":"Speed 1: 100; Speed 2: 185; Speed 3: 255; Speed 4: 300; Turbo: 375","ionizer":"Yes","hepa_filter":"True HEPA H13; 99.99% of particles down to 0.1 micron","noise_level":"51","coverage_area":"1400 to 2800"},"confidence_score":null,"sources":[{"label":"Alen","url":"https://alen.com/products/alen-breathesmart-75i-air-purifier","currency":"USD","source_country":"US","price":799.0,"price_gbp":591.04,"scraped_at":"2026-09-08T01:16:25.265297"}],"summary":"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":"适合希望使用带离子发生器的安静空气净化器的人群，因为它配备离子发生器技术，标称最高噪音为 51 dB，并提供高达 375 CFM 的气流量，适用于大房间。"}]}