How many filters are in the AMBREEZE Air Purification System?

The AMBREEZE Air Purification System has three (3) filters, but four stages of purification.
There is a washable pre-filter, a true HEPA H13 filter with anti-bacterial coating and activated
carbon filter.

As well as the filters, there is an additional UV-C light at the top of the filtration unit which
destroys germs and some bacteria.