Features: 1. Professional prevent mist haze, dust particles. 2. Electrostatic filter, four layer protection, comfortable and breathable, joint face. 3. Four levels of protection against pests. 4. Fit closely face, wear comfortable. 5. Exhale with masks, gas quickly reduce expiratory resistance, let your breathing at ease, comfortable. Description: Brand name: Heal Force Model: HF-G5 Wear: Ear wearing type Life cycle: Abandon type, suggest 3 to 5 days replacement Scope of application: Dust, dust proof, tiny particles, prevent mist haze Package Included: 1 X Box PM2.5 mask(20Pcs) Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.