After trying this filter out in my lab, I cannot stress enough how efficient it is. It's perfect for anyone in the industrial and scientific field due to its superb filtration and durability. I've used other filters in the past that would fall apart easily or fail to filter as effectively, but this filter outperformed them all. The only downside is that it may not work for smaller vacuums, but overall, it's a must-have for anyone in the market for a high-quality filter.