Filtered by tag: MERV Remove Filter

The State of Filtration in the Race to Zero Emissions and in the Wake of COVID

Brian Lane headshotAFS FiltCon 2021 included a plenary presentation from Brian Lane, expert filtration industry consultant and retired Vice President of Engineering, Technology and Innovation at Parker Hannifin. His presentation, “How Global Mega Trends, Particularly the 'Race to Zero Emissions' and COVID, are Impacting the Filtration Industry,” provided valuable insight into the state of the filtration industry, especially in light of the events of 2020.

Brian began by referencing the 2017 AFS Point of View Publication, written by former AFS Chair Tom Ramsey. Brian highlighted six global mega trends that formed the basis for chapter two of the report, emphasizing that after four years, all are still vigorous drivers of change in the filtration and separations industry: Population Growth and Social Change, Disruptive Digital Technology Changes, Rapid Urbanization on a Global Scale, Climate Change and Natural Scarcity, Transformative Healthcare Advances, and Reduce, Reuse and the Race to Zero Emissions/Discharge. In fact, the events of 2020 even accelerated the pace of change for several of them, most notably in the social change, healthcare and emissions areas.

Read More

Impacts on Filtration Market Growth, Before and Since COVID


Read More

The Latest and Greatest: AFS Corporate Sponsor Product Spotlight on Antimicrobial Filter Media from PureAir Filtration

PureAir Filtration’s FiberShieldTM is a Nylon 6,6 nonwoven spunbond microfiber material impregnated with silver (Ag) ionic nanoparticles. The silver ionic mesh creates an antimicrobial Zone of Inhibition around and in between the fibers that deactivates viruses, bacteria and fungi. For example, FiberShield deactivates >99.89% of the SARS-CoV-2 (the virus that causes COVID-19).

FiberShieldTM has a basic weight of 34 g/m2 per layer and a pressure drop of 0.11 iwg (27 Pa). The thin and light substrate allows for more pleats in the same size filter housing, increased media surface area and dirt holding capacity, lower pressure drop, and smaller and lighter weight filters. The particle filtration capability is rated as MERV 4. The melting point of the fiber is 265oC, and its heat capacity is 1.47 J/g*K, with thermal stability that can withstand 150°C consistently.

Read More

Keynote Addresses at Virtual Fall Conference Include “The Air We Breathe: What's Inside Matters” and “Filtration and Air Cleaning in the Age of COVID-19”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon. To accommodate a wide range of time zones, the virtual conference will take place from 10am to 2pm CST on both days.

The conference includes a keynote address each day:

Read More


Guest blog by Kathleen Owen, ASHRAE Fellow, ETF member and Air Pollution Control Engineer for Owen Air Filtration Consulting

Have you been asked how MERV filters catch PM2.5?  Obviously, it’s easy to go to the ASHRAE Standard 52.2 MERV table and see that a MERV 13 filter is ≥ 85% in the 1-3 µm particle diameter size range.  This is often the answer you need.  Still the questions keep coming, including from ASHRAE SSPCs 62.1 and 62.2.  With ISO 16890 providing an ePM and these ASHRAE committees deciding to specify filters using particulate matter efficiencies, it became clear that ASHRAE 52.2 needed to address this issue.

Read More