{"niche":"What is the best hepa air purifier for large rooms (over 200 sq ft)?","description":"What is the best hepa air purifier for large rooms (over 200 sq ft)?","products":[{"brand":"Rabbit Air","model":"A3 Ultra","price_gbp":560.36,"origin_country":null,"specs":{"filter_type":"6-stage (BioGS HEPA + Dual Hive activated carbon + Pre-filter + Customizable specialty filter + Ionizer + Mechanical)","noise_level_db":"20.3 to 51.0","coverage_area_sqft":"1070","energy_consumption_watts":"5 to 60","filter_replacement_interval":"Replace main filter per app/usage (manufacturer sells filter kit; interval varies)","clean_air_delivery_rate_cadr":"Pollen 315 / Dust 262 / Smoke 257","maximum_particle_size_capture":"0.3"},"confidence_score":null,"summary":"The Rabbit Air A3 Ultra is a premium, ultra-quiet air purifier with six-stage filtration including a proprietary BioGS HEPA and dual activated carbon for VOC and odor removal. It suits large open spaces up to 1,070 sq ft and users who want high CADR, app control, and low-noise operation.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"Rabbit Air shop (product listing)","url":"https://www.rabbitair.com/products/a3-air-purifier?variant=SPA-1000N","currency":"USD","source_country":"US","price":749.95,"price_gbp":560.36,"scraped_at":"2026-06-07T13:32:04.620550"},{"label":"Rabbit Air (official)","url":"https://www.rabbitair.com/products/a3-air-purifier","currency":"USD","source_country":"US","price":749.95,"price_gbp":560.36,"scraped_at":"2026-06-07T13:31:57.350055"},{"label":"Rabbit Air store product page (listing)","url":"https://www.rabbitair.com/pages/a3-air-purifier","currency":"USD","source_country":"US","price":749.95,"price_gbp":560.36,"scraped_at":"2026-06-07T13:32:01.043429"}]},{"brand":"AirDoctor","model":"AD4000/4000S","price_gbp":507.35,"origin_country":null,"specs":{"filter_type":"Pre-Filter; UltraHEPA; Premium Carbon/VOC","noise_level_db":null,"coverage_area_sqft":"694","energy_consumption_watts":null,"filter_replacement_interval":"Replace UltraHEPA and Carbon/VOC every 6 months","clean_air_delivery_rate_cadr":"Smoke 370; Dust 393; Pollen 450; PM2.5 381","maximum_particle_size_capture":"0.003 microns"},"confidence_score":null,"summary":"Three-stage filtration (pre-filter, UltraHEPA, premium carbon/VOC) captures ultrafine particles and gases for large rooms. Suited for users who need high-efficiency removal of particles, VOCs and pathogens in living rooms or open spaces.","pros":null,"cons":null,"ideal_for":null,"sources":[{"label":"AirDoctor official store","url":"https://airdoctorpro.com/products/airdoctor-4000","currency":"USD","source_country":"US","price":679.0,"price_gbp":507.35,"scraped_at":"2026-06-07T13:32:18.649855"}]}]}