True HEPA filter up to 99.97% Filtration with Activated Carbon
Compatible with Blue Pure 411 Air Purifier by Blueair
Foldable design, easy to remove and replace. The filter is environmentally friendly and can be recycled
For better performance, it is recommended to change filter every 6 months. If there's any odor, it's time to change
Premium quality Volca Spares brand product