Coarse Particulate Pre-Filter – Captures large particulates such as pet dander. Antimicrobial Filter powered by AerisGuard™: The AerisGuard™ Bioactive Filter affords additional efficacy reducing mould, bacteria and viruses on contact. It specifically prevents colonisation of harmful indoor pathogens and viruses, such as COVID-19, in the filter. Traditional filters tend to become blocked by growth of this material and become less effective over time. Medical-grade HEPA-13 Filter: 99.97% effective in reducing airborne viruses, bacteria, mould & allergens up to 0.3μm. Advanced Activated Carbon Filter: Removing harmful gases, unpleasant odours, fumes, formaldehyde and VOCs including chemicals from clothing, paint or furniture.