The filter is changed every 3 months and the HEPA filter helps to increase efficiency. Winix air purifiers improve the air Grade of the house. It can filter micron-level dust to prevent secondary pollution and can be removed and cleaned separately. Activated carbon filters remove a variety of home odors and leave a healthy environment your children and families to help reduce these particles. Fit Winix 115115 Suitable with 5300 6300 5300-2 6300-2 P300 C535 and other air purifiers.
