This version is an EPA (Efficiency Particulate Air) filter that’s able to trap particles that’re 0.3 microns in size. Essentially you can consider this as the standard default filter. This is the filter that’s mostly likely included in every Mi Air Purifier.
•High efficiency 3 layers filter: Primary filter net, EPA filter net, high quality activated carbon filter
• The filter can remove 99.99 percent of PM2.5 particles, bacteria, heavy metal, organic matter, etc.
• Recommend replacing cycle: 3 - 6 months
• Easy and fast to install
•Suitable for Original Xiaomi OLED Display Smart Air Purifier 2S / Xiaomi Mi Air Purifier / Xiaomi Mi Air Purifier 2 / Xiaomi Mi Air Purifier Pro