This replacement HEPA filter by GermGuardian is also known as Size A. Included in the package is one HEPA filter that contains multiple layers, including a charcoal layer that helps absorb odors. This filter lasts approximately 6-8 months depending on use.
The FLT4010 fits the following air purifier units:
- GermGuardian AC4010
- GermGuardian AC4020