Includes 3 Enhanced Activated Carbon HRFSC1 Replacement Filter S units. Compatible with Honeywell Air Purifer Models HPA3100, HPA3200, HPA3300, HPA5100, HPA5150, HPA5200, HPA5220, HPA5250, HPA5300, HPA5350. Compare to Filter S and Part Numbers HRFSC1, HRFSK1, HRFSP1, HRFSS1. Filter S is intended to be used along with Hepa and Pre Filter to Help Reduce Common Household Odors. Key benefits and features - Odor control with enhanced activated carbon media to help reduce common household odors - Replacement for Filter S S series filters in the listed Honeywell purifier models - Part of a compatible filter set designed to work with Hepa and Pre Filter for odor management - Fits the HRFSC1 replacement filter family and is comparable to HRFSK1, HRFSP1, HRFSS1 What makes it stand out - Enhanced Activated Carbon for odor filtration - Specific compatibility with a range of Honeywell HPA purifier models - Clear alignment with Filter S replacement filter S part numbers for easy identification Use scenarios - In kitchens after cooking to reduce lingering food odors while the purifier is operating - In homes with pets or tobacco smoke to maintain a fresher indoor environment - In living spaces with frequent odor sources such as cleaning activities or near entryways to improve overall air quality Usage guidance - Use this Filter S replacement along with the Hepa filter and Pre Filter to maximize odor reduction in compatible Honeywell purifiers Notes - This listing is for replacement Filter S HRFSC1 units intended for use in the specified Honeywell Air Purifer models - It is designed to be compared to and used as an equivalent option to HRFSC1, HRFSK1, HRFSP1, and HRFSS1 style filters