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Overviews: BE SAFE - Currently, deadly dangerous Coronavirus spread mostly by respiratory droplets and direct contact but unfortunately, there is currently no vaccine to prevent coronavirus infection. However, as a reminder, there are always daily preventive actions to help prevent the spread of respiratory viruses, including: Wear Respiratory Mask with at least N95 Filter, which will filter out all harmful particles, even if you live in a busy city. Wash often your hands and avoid touching your face, eyes, and mouth since that’s the entry point for viruses. IMPROVED AIRFLOW VALVE - Provides comfortable breathing by reducing heat and moisture build-up. Value opens upon exhaling, lowering breathing resistance. It closes on inhale making the filters work. Unique ventilation, a plurality of holes, excellent permeability will help you breathe in a cleaner, healthier way. HEALTHY AIR - N95/N99 filters are designed to stop up to 99% of harmful particles from airborne. Within the first