Filter-Monster – Replacement HEPA Filters, 2 Pack – Compatible with Therapure TPP440F Filter for Therapure Air Purifier TPP440, TPP540, and TPP640 Air Purifiers

Key features

• Compatibility: Compatible with Therapure TPP440F filters. Engineered to fit Therapure Envion air purifier models TPP440, TPP540, and TPP640.
• Air Quality Improvement: True HEPA filtration is rated H13 and removes up to 99.97% of airborne particles as small as 0.3 microns in size including dust, smoke, pollen, pet hair and dander, mold spores and dust mites.
• Airtight Seal: Foam gasket seal for high performance filtration directs air through the filter and keeps air from escaping around the sides.
• Maintenance: Recommended to change this filter once every six (6) months under normal conditions, and more often under harsh air conditions. Package contains two (2) replacement filters.
• Approximate Measurements: Each filter measures 17.8 x 5.25 x 2.4 inches.