Proper air filtration and air purifiers are essential for improving air quality in all indoor spaces, especially in light of the COVID-19 pandemic. Mechanical and electronic air purification systems are the most common methods for reducing airborne pollutants, particles, and biological aerosols. HEPA filters are air purifiers that use a larger motor to filter out very small particles. They work by absorbing the air in the room and then removing impurities from it.
HEPA filters are the best technology for air cleaning performance, as they can remove most airborne contaminants, including the most dangerous particles. Plus, they become more efficient over time. It's important to follow manufacturer's recommendations for cleaning and filter replacement to ensure proper functioning. The Minimum Efficiency Report Value (MERV) measures a filter's ability to capture particles between 0.3 and 10 microns (µm).
A true HEPA product is an air filter that can trap particles with 99.97 percent efficiency. Carbon pre-filters also capture smoke, odors, harmful gases, and volatile organic compounds (VOC), which HEPA filters cannot trap. Air ionizers work by releasing negatively charged ions into the air, which attract pollutants wherever they can find them. An air purifier isn't a necessity for everyone, but it can improve almost everyone's life.
The CDC COVID-19 guidelines recommend using a minimum of one MERV 13 filter inside HVAC systems to remove a minimum of 99.97% of particles in the 0.3 micron size. School districts can implement air purifiers to mitigate COVID-19 (SARS-CoV) air, allowing them to reopen schools safely and sooner.HEPA filters are an effective way to reduce airborne pollutants and improve air quality in indoor spaces. It's important to follow manufacturer's recommendations for cleaning and filter replacement to ensure proper functioning.