The True HEPA Filter is coated with an Anti-microbial solution that stops the growth of bacteria and other microbes. This filter also captures pollen, dust, mould, pet dander, cigarette smoke and other allergens.
The carbon filter is treated with a deoderization coating that reduces large amounts of odours and also acts as a pre-filter to capture larger particles extending the life of the HEPA filter.
This filter set fits both HR units and HR1000. It includes a carbon filter and a HEPA filter and will last for a year.