Breathe easier in bigger spaces this school year with the PuroAir 400 Air Purifier and 4 replacement filters. Delivering a full 15 months of clean air coverage.

Designed for classrooms, conference rooms, teacher lounges, family rooms, and open living spaces, the PuroAir 400 combines high-powered performance with quiet operation. With up to 2,000 sq ft¹ of coverage, it’s the perfect solution for keeping the air fresh and healthy in large, shared environments.

What’s Included

• 1 × PuroAir 400 Air Purifier (includes one filter)
• 4 × Replacement Filters (15 months of coverage)

Key Features

• Extra-Large Coverage: Cleans up to 2,000 sq ft¹, making it ideal for classrooms, common areas, and large rooms
• 3-Stage Filtration: Pre-filter, advanced HEPA filtration layer, and CarbonTech™ for odors¹ & smoke⁴
• Smart Auto Mode: Detects and adjusts fan speed automatically based on real-time air quality
• Air Quality Sensor + Indicator: Instant feedback so you always know your air quality
• Sleep Mode: Quiet operation for uninterrupted work, study, or rest
• Family & Classroom Ready: Powerful yet energy-efficient design for daily use in busy spaces
• Filters: Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm, VOCs⁵
• Reduces: Pet dander⁴, smoke⁴, pollen⁴, allergens⁴, dust³, odors¹ and contaminants¹

Specifications

• Model: PuroAir 400 (includes one filter)
• Room Size Coverage: Up to 2,000 sq ft¹
• Filter Life: Approx. 3–4 months each (4 filters = 15 months total)
• Noise Level: As low as 31 dB in Sleep Mode
• Dimensions: 14.4” H × 8.1” W × 21.5” D
• Weight: 14.7 lbs
• Warranty: 2 years with registration