Why is meltblown the material of choice for PPE and facemasks?
Meltblown has risen from a commodity nonwoven material for select applications to front-and-center in the response to the COVID-19 pandemic. Meltblown is created via an integrated extrusion process. It utilizes …
When filtration gets heated – considering hot gas applications
Hot gas filtration is a process utilized to remove particulate in high temperature gas streams. Depending on the process, the temperature ranges can very between 250 C to 1,000 C. …
A civil approach to facemask filtration
Standardized facemasks typically fall into one of two categories — surgical or respirator. Both variants are designed to offer various levels of protection against the transmission of bacteria and other …
Filtration in the age of COVID-19
There are many different facemasks in the market today – from do-it-yourself cut and sew barrier masks to highly engineered products that require testing and certification to be used. In …
Perspectives & challenges in IAQ – takeaways from AHR Expo
I made the trip to Orlando in February for the 2020 AHR Expo. I traveled to this event with the objective of determining the level of interest in an INDA …