This premium high-efficiency H13 True HEPA Replacement Filter Combo Pack is a complete one-year filter set and fully compatible with *Vornado Air Purifiers mentioned below. This True HEPA Filtration system contains the following filters:

-Four (4) Activated Carbon Pre-Filters (MD1-0023): Traps larger particles in the air like dust, hairs, pet fur, lint, and absorbs household odors from pets, cooking, smoking, wildfire, and harmful VOC's

-One (1) Premium H13 Grade True HEPA Filters (MD1-0022): Captures 99.97% of airborne particles down to 0.3 microns in size, creating fresh and purified air for you and your family

Fully Compatible with the following Vornado air purifier models:
-AC300 Air Purifier (AC1-0015-06)
-AC350 Air Purifier (AC1-0038-43)
-AC500 Air Purifier (AC1-0016-06)
-AC550 Air Purifier (AC1-0039-43)

Please note that AC500 and AC550 require 2 HEPA and Activated Carbon filters

Using high efficiency air purifier filters and replacing the filters regularly will help optimize air cleaning performance. Replace your True HEPA filter (MD1-0022) every 12 months and Activated Carbon Pre-Filter (MD1-0023) every 3 months for optimal performance.

*Disclaimer:
These filters are designed by Flintar in the United States. The Vornado brand names and logos are the registered trademarks of their respective owners. Any use of the Vornado brand name or model designation for this product is made solely for the purposes of demonstrating compatibility