Woobi Plus is tested with equivalent results of the American N95 or European FFP2 performance (Test: GB2626 & Certification: KN95). The mask filters the following particles in the air you breathe:
• PM 0.3-10, dust and other air pollutants
• Pollen and other allergens
• Bacteria and other germs
• Wildfire smoke & cigarettes
Each Woobi Plus comes with 2 replaceable Micro-HEPA Air filter. Each air filter’s lifetime depends on many factors such as the pollution in your surroundings. On average our filters last 122 hours (based on average AQI 50). However, we advise to change every fortnightly for hygienic reasons OR when you feel that your breathing is inhibited.