The company has designed this O2 Curve Respirator while considering the common allergens and pollutants in the air. Although it helps against common pathogens, including some species of viruses but it may not be 100% effective against coronavirus. The coronavirus that is now spread to all major parts of the world is still a relatively new virus, and there is not much information available on it. https://classifieds.usatoday.com/marketplace/o2-curve-respirator-reviews-super-comfortable-and-protective-face-mask/
