Honeywell Air Purifier Enhanced Filter Series is designed to help reduce the most common household odours and VOCs, so you can customize your filtration experience based on your needs. Four (4) options are available in this line: Pet, Smoke, Kitchen, and Home Renovation. This OEM genuine Honeywell HRFTC1V1 Enhanced Home Renovation Air Purifier Filter “T” is specially formulated with pelletized activated carbon to capture and adsorb common VOCs generated during the home renovation and remodelling process. Use of this filter along with the Pre-Filter and HEPA Filter may help reduce construction-related VOCs up to 4.5 times faster.