True HEPA and Allergy Replacement Filters for TruSens™ Air Purifiers Z-3000, Z-3500

• This combination filter has three levels of filtration to defend against flu viruses and pollutants in the air.
• All-in-one filter system combines a True HEPA filter with an activated carbon filter and a durable mesh prefilter.
• 360 degree filtration draws in air from all directions, collecting pollutants from around the room.
• The filter is at the core of purifying your air and replacement is essential for your purifier to perform at its best.
• Replace every 3 to 4 months (depending on usage).