This high-quality charcoal prefilter fits the Hunter Quiet Flo 30400 room air cleaner. The activated carbon prefilter helps reduce odors, trap large particles and lenghtens life of the main HEPA filter. Prefilters should ideally be changed every three months.
Customer will recieve two charcoal prefilters sized 15x15x1/4. Simply cut the prefilter to the correct size.