Air quality
Dyson Purifier Big+Quiet Formaldehyde (BP03 / BP04)
Dyson
Dyson's large-room air purifier with a three-stage filter (HEPA H13-grade, K-Carbon and a catalytic formaldehyde filter), CO2 sensing with alerts when levels are high, and air projection Dyson quotes at up to 32 ft; it weighs 26.24 lb. Dyson lists a 2-year limited warranty and MyDyson app control. Price: BP04 (Prussian Blue/Gold) $909.99 on sale (list $1,199.99); BP03 (Nickel/Prussian Blue) $899.99 on sale (list $1,099.99), checked Oct 4, 2026. US availability: both sold on dyson.com, in stock. Regulatory: listed on CARB's certified air cleaning devices list as models BP03/BP04, type mechanical (filter-only), EO G-23-113. Directory: Air quality > Air purifiers.
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