Fresh, pure air revitalizes us and helps us live a long, healthy, and stress-free life. Prior to the Covid -19 pandemic, humans only encountered challenges from micropollutants and other pathogens and germs in the air. However, with the covid outbreak, we also have challenges of to protect ourselves from this dangerous virus, and air purifiers are the most common devices accessible to us to address this challenge. However, the question is Can air purifiers filter out COVID-19 virus? The ideal way to address this issue could be to show you a picture of the technology used in filtration, the procedure, and the ways of air filtering. Do you know that there are two types of air purifier technologies: active and passive air purification Passive air purifiers deploy air filters to eliminate pollutants whereas active air purifiers discharge negatively charged ions into the air, causing toxins to stick to surfaces. Because all dust and particle matter is permanently removed from the air and co