400 HEPA Replacement Filter

Clean Air at Full Power

Keep your 400 HEPA Air Purifier working like new with the 400 HEPA Replacement Filter. Designed specifically for the 400 HEPA, this advanced 3-layer filter removes up to 99.9% of airborne pollutants, dust, pollen, smoke, VOCs, and pet dander, so the air you breathe stays cleaner, longer.

Its powerful multi-stage filtration system targets both large and microscopic particles, while the activated carbon layer absorbs household odors and chemical gases. With optimal performance up to 2,000 sq ft, it’s perfect for larger rooms, open-concept homes, and high-pollution environments.

Replace every 90 days for best results, or more frequently during peak allergy seasons or periods of heavy air contamination like wildfire events.

Key Features

• 3-Layer Filtration System

  • Pre-Filter: Captures large particles like dust and pet hair

  • HEPA Filter: Filters up to 99.9% of particles as small as 0.1 microns

  • Activated Carbon Layer: Reduces odors, VOCs, and smoke

• High-Efficiency Performance: Cleans air in rooms up to 2,000 sq ft*

• Precision Fit: Custom-designed for the 400 HEPA Air Purifier

• Backed by Science: Designed with input from air quality experts

• Quick, Free Shipping: Ships same day*

• 100-Day Guarantee + Lifetime Warranty: Available with filter subscription

*Tested to remove Fel d 1 and pollen in an ISO 17025-certified lab. Results may vary.

What’s in the Box

• 1 × 400 HEPA & Activated Carbon Replacement Filter

Specifications

• Dimensions: 16.7” x 12.2” x 2.2”

• Weight: 0.5 lbs

• Filtration Capability: PM1, PM2.5, PM10 particles down to 0.1 µm, VOCs

• Recommended Use: Replace every 90 days for optimal performance

• Compatibility: Only for use with 400 HEPA Air Purifier