Wearable Air Purifier consists of two arms behind the ears and the third support point in the area between the nostrils and the upper lip. It allows use of different types or combination of UV light sterilization, filter capturing particles suspended in the air and air ionization as well as capability of monitoring and notifying about air quality and/or sending the data to a personal electronic device such as a mobile phone. Air flow can occur naturally by the force of human lungs during inhalation and exhalation or forced air flow provided by air blowing device powered by a battery inside the enclosure to supply cleaned air into the space under the nostrils. Enclosure and arms forms, shapes, colors and materials can be a matter of fashion, depend on combination of air purification modules, or type of power source such as internal rechargeable battery or removable batteries. The whole structure of the device is made collapsible or foldable for ease of transportation and storage.