Features:

Filter replacement kit includes one (1) BioGS HEPA Filter and one (1) Charcoal based Activated Carbon Filter for the BioGS 2.0 Ultra Quiet Air Purifier (SPA-550A and SPA-625A).
For models SPA-550A and SPA-625A
The BioGS HEPA filter made of the most advanced fiber material which traps and reduces common allergens* and contaminants on the filter. (Greatly reduced Secondary Pollution through the HEPA filter which may be found in the conventional HEPA Air Cleaner.)
Traps airborne allergens and contaminants down to 0.3 microns in size, 99.97% of the time.
BioGS HEPA filter also alleviates many common household odors, Volatile Organic Compounds and household chemical smells.
Up to 3 years based on 12 hour daily operation or every 18 months based on 24 hours of daily operation.

Details: This filter replacement kit includes everything you need to maintain your air purifier. It comes with one (1) BioGS HEPA Filter and one (1) Charcoal Based Activated Carbon Filter. Filters will last 1.5 year to 3 years depending on usage. Charcoal based activated carbon filter: Made of high-grade granular activated carbon, our AC filter is much more effective than typical AC filters, which are coated with a thin layer of activated carbon. Chemicals and common household odors can be effectively reduced. HEPA filter: Typical HEPA air purifiers trap allergens and contaminants, which accumulate on the filter and interfere with efficiency. The BioGS HEPA filter traps and reduces common allergens* to support optimum filter efficiency and prolong filter life.