The combo kit includes:

1. Pre filter

Can separate hair & bulky dust

Regular cleaning is recommended for 1-3 months

2. HEPA filter

Filters tiny suspended particles, allergens, pollen, bacteria, viruses and molds

It is recommended to replace once every 9-12 months

3. Oxygen depolymerization reaction layer

Remove odor, decomposition, harmful substances (such as formaldehyde and volatile organic compounds, etc.)

Long-term use with normal maintenance