This 4pack Universal Carbon Sponge Filter uses an activated carbon embedded foam sheet to serve as a replacement pad for air purifiers. Designed to provide odor and gas control while supporting standard particulate filtration, it helps maintain clean air between filter changes. The universal design is compatible with a wide range of purifier models that use foam or carbon filter pads. Key benefits Odor and gas control: activated carbon within the foam absorbs odors, cooking smells, smoke, and other VOCs to improve room air quality. Easy replacement: quick, tool installation to restore filtration performance with minimal downtime. Universal compatibility: designed to fit a broad selection of air purifiers that require carbon sponge replacement pads. Value and convenience: comes in a 4pack for extended use and costefficient maintenance. Supplemental protection: acts as an initial barrier to trap larger particles, helping to preserve the life of your primary filter. Key attributes Functionality: carbonactivated sponge sheet provides adsorption of odors and certain gases while allowing airflow for filtration. Material: activated carbon integrated into a foam sheet for lightweight, flexible replacement pads. Compatibility: universal fit across many air purifier models that accept carbon sponge or foam replacement pads; check model compatibility before . Size: designed to fit standard foam/carbon pad slots; exact dimensions vary by purifier model. Verify fit with your unit's replacement pad specifications. Performance: supports odor and gas reduction alongside primary particulate filtration, contributing to overall air quality improvement. Compatibility and sizing Universal design aims to fit a wide range of standard air purifier models that use carbon sponge or foam replacement pads. Exact fit depends on the purifier model; please verify compatibility with your device's replacement pad specifications and slot dimensions. If your purifier uses a different filtration stage, this pad is intended to complement the existing system and may require periodic replacement to maintain performance. Use cases Home odor reduction: kitchen, pet spaces, or areas with persistent smells benefit from the activated carbon component. Smoke or VOC control: effective in rooms where cooking smoke, incense, or volatile compounds are present. General air purification: suitable for bedrooms, living rooms, offices, or any space relying on foam/carbon pad replacements to sustain filter efficiency. How to use Open your air purifier as directed by the user manual. Remove the old replacement pad and insert the carbon sponge filter from the 4pack, ensuring a snug fit. Reassemble the purifier and operate as usual. the pad when filtration performance declines, odors persist, or according to your purifier's maintenance schedule and usage. Maintenance and replacement guidance Inspect the pad regularly for signs of wear or reduced filtration performance. with a pad from the 4pack when needed to maintain effective odor and gas adsorption. For results, follow your purifier manufacturer's recommended replacement interval and compatibility guidelines. This description reflects the product's key purpose as a universal carbon sponge filter replacement pad set, emphasizing its odor control capability, compatibility, and value through a 4pack package.