Genuine OEM Hunter Replacement Carbon Prefilter 30901 pack (contains at least 2 prefilters - trim to fit your specific air purifier; instructions included). Replaces pre-filters 30903, 30907, 30909, 30927.

Fits all Hunter QuietFlo air purifier models, including:
Hunter QuietFlo Air Purifiers: 30085, 30090, 30095, 30105, 30115, 30117, 30119, 30130, 30145, 30170, 30175, 30185, 30210, 30214, 30215, 30216, 30225, 30244, 30245, 30260, 30398, 30400, 30401, 30402, 30525, 30713, 30729, 30730, 30735, 30736, 30763, 30785, 36095, 36127, 36260, 36395, 37090, 37225.

Fits new Hunter HEPAtech air purifier models, including:
Hunter HEPAtech Air Purifiers: 30023, 30027, 30028, 30057, 30059, 30067, 30078, 30079, 30097, 30124, 30126, 30180, 30201, 30212, 30213, 30240, 30241, 30251, 30253, 30378, 30379, 30381, 30382, 30526, 30527, 30528, 30700, 30710, 30711, 30714, 30715, 30716, 30717, 30721, 30750, 30770, 30771, 30775, 30776, 30777, 30790, 30791.

Also Fits Hunter PermaLife Air Purifiers: 30190, 30540, 30546, 30547, 30706, 30747 (30687), 30748, 30750, 30755, 30756, 30795, 37755.

Replace every 2-3 months, depending on usage.

Pre-filters protect your HEPA filter from larger particles, thus prolonging the life of the HEPA filter. The carbon pre-filter traps larger particles and helps to eliminate odors from smoking, cooking and other household odors. Reduces common household odors 30% better than other leading brands. Traps particles such as:

• Pet Hair
• Dust
• Lint
• Tobacco smoke odors
• Cooking odors
• Pet odors
• General household odors