HVAC / HEPA / ULPA
Virus filtration performance of residential HVAC filters
As the COVID-19 pandemic has spread and made its impact worldwide, air filtration has risen to prominence as a potential solution to the spread of viral contagions, as well as in addressing air pollution in general. In the United States, high-efficiency HVAC filters and RAPs (room air purifiers) are widely used for mitigating indoor particulate …
COVID-19 UPDATE: Researchers employ copper foam to filter microbes in facemasks and air filtration systems
With COVID-19 having an impact worldwide, International Filtration News is tracking stories relevant to the filtration industry. Filtration media for facemasks and respirators are at the forefront of the COVID-19 response effort, and meeting the demand for these types of filter media is proving to be a challenge. As manufacturers of filter media and others …
ASHRAE’s Epidemic Task Force takes on the complicated case of HVAC filtration in a COVID-19 world
The American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) formed an Epidemic Task Force (ETF) in March 2020. The aim of the group is to provide building designers and operators a point of trusted information and guidance for optimizing their facilities amid the COVID-19 pandemic, as well as for a future state where viral …
Forget self-cleaning, let’s desiccate this virus
Hydrophobicity occurs on the leaves of many plants in nature and is often referred to as “The Lotus Effect,” carrying out a self-cleaning function by preventing the penetration of water droplets so that they simply bead up and roll off it. As the water droplets roll off, they take any surface dirt and dust with …
Nanocoating technology prevents SARS-CoV-2 in HVAC systems
A new nanocoating from Curran Biotech, based in Houston, Texas, professes to effectively and cheaply stop the spread and lingering impacts of the SARS-CoV-2 virus when applied to the filter fabrics in common HVAC (heating, ventilation and air conditioning) systems. Curran’s Capture Coating permanently bonds to the porous materials within a filter, stopping viruses, bacteria …