{"niche":"Which hepa air purifiers have a high Clean Air Delivery Rate (CADR)?","description":"Which hepa air purifiers have a high Clean Air Delivery Rate (CADR)?","products":[{"brand":"Blueair","model":"Blue Signature (Table)","price_gbp":336.03,"origin_country":null,"specs":{"filter_type":"HEPASilent (HEPA + activated carbon)","noise_level_db":"34.8 - 59.6","coverage_area_sqft":"705","energy_consumption_watts":"38.65","filter_replacement_interval":"9-12 months","clean_air_delivery_rate_cadr":"Pollen 450, Dust 434, Smoke 455 CFM","maximum_particle_size_capture":"0.1 microns"},"confidence_score":null,"summary":"The Blueair Blue Signature is a high-CADR, design-forward air purifier that doubles as a small table and targets large spaces up to 705 sq ft (with maximum coverage cited up to 3,385 sq ft). It uses HEPASilent multi-stage filtration with activated carbon and OdorFence technology, offers smart app control and a motion-activated display, and suits users who want powerful odor removal and a stylish, furniture-like purifier.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Blueair (official)","url":"https://www.blueair.com/products/blue-signature","currency":"USD","source_country":"US","price":449.99,"price_gbp":336.03,"scraped_at":"2026-06-08T00:00:58.742963"},{"label":"Live Science (product coverage listing with price)","url":"https://www.livescience.com/health/blueair-blue-signature-air-purifier-review","currency":"USD","source_country":"US","price":449.99,"price_gbp":336.03,"scraped_at":"2026-06-08T00:01:01.566456"},{"label":"HouseFresh (review with stated list price)","url":"https://housefresh.com/blueair-blue-signature-review/","currency":"USD","source_country":"US","price":449.99,"price_gbp":336.03,"scraped_at":"2026-06-08T00:01:04.407598"}]},{"brand":"Alen","model":"BreatheSmart 75i V2","price_gbp":596.65,"origin_country":null,"specs":{"filter_type":"True HEPA (H13) with optional activated carbon (Pure, Fresh, Odor options)","noise_level_db":"25-49","coverage_area_sqft":"2800","filter_replacement_interval":"12-15 months","clean_air_delivery_rate_cadr":"347","maximum_particle_size_capture":"0.1"},"confidence_score":null,"summary":"The Alen BreatheSmart 75i V2 is a high-capacity True HEPA (H13) air purifier with optional high-carbon filters, designed for large open spaces up to 2,800 sq ft. It offers high CADR, low noise operation, Energy Star efficiency, smart sensors, and long filter life, suited for allergy sufferers, large homes, and offices.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Alen","url":"https://alen.com/collections/breathesmart-air-purifiers/products/breathesmart-75i","currency":"USD","source_country":"US","price":799.0,"price_gbp":596.65,"scraped_at":"2026-06-08T00:01:15.716388"},{"label":"Home Depot","url":"https://www.homedepot.com/p/Alen-BreatheSmart-FLEX-700-sq-ft-HEPA-Console-Air-Purifier-with-Pure-Filter-for-Allergens-Dust-and-Mold-in-Whites-BreatheSmart-FLEX-Pure/301816930","currency":"USD","source_country":"US","price":799.0,"price_gbp":596.65,"scraped_at":"2026-06-08T00:01:18.506901"}]},{"brand":"Austin Air","model":"HealthMate","price_gbp":631.0,"origin_country":null,"specs":{"filter_type":"True medical-grade HEPA; activated carbon and zeolite (4-stage)","noise_level_db":"42.5 to 66","coverage_area_sqft":"1500","energy_consumption_watts":"61.1; 85.05; 147.6; maximum 115","filter_replacement_interval":"5 years","clean_air_delivery_rate_cadr":"154","maximum_particle_size_capture":"0.3 microns (99.97%) and 0.1 microns (95%)"},"confidence_score":null,"summary":"The Austin Air HealthMate uses a 4-stage system combining true medical-grade HEPA with 15 lb activated carbon and zeolite to remove particles, gases, and odors. It suits allergy, asthma, and chemical-sensitivity sufferers and is rated for large spaces up to 1500 sq ft with long-lived filters.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Sylvane","url":"https://www.sylvane.com/products/austin-air-healthmate-air-purifier","currency":"USD","source_country":"US","price":844.99,"price_gbp":631.0,"scraped_at":"2026-06-08T00:01:29.727523"},{"label":"HouseFresh (review page lists specs)","url":"https://housefresh.com/austin-air-healthmate/","currency":"USD","source_country":"US","price":null,"price_gbp":null,"scraped_at":"2026-06-08T00:01:32.607473"},{"label":"Austin Air (official FAQ/specs)","url":"https://austinair.com/faq/","currency":"USD","source_country":"US","price":null,"price_gbp":null,"scraped_at":"2026-06-08T00:01:35.447760"}]}]}