【High Filtration Performance】 The Airvida M1 is equipped with a high-performance filter that removes 99.9% of PM2.5. It also has a very high allergen removal rate of 99.9%, allowing for safe use. 【Lightweight and Convenient Design】 The main body weighs only 20g, making it comfortable to wear for extended periods. It supports 3-way wearing styles, allowing you to use it according to the situation. 【Simple Operation】 Operation is very easy, and anyone can use it with ease. By wearing the air purification function, you can maintain a comfortable space. - Product Name: Airvida M1 Aible Airvida M1-BK Black - Color: Black - Filter Performance: PM2.5 Removal Rate 99.9% - Allergen Removal Rate: 99.9% - Size: Lightweight 20g - Wearing Style: 3-way wearing possible Thank you for viewing.