We got these new filters for my hair salon. As we were planning for reopening during the Covid-19 pandemic, we were really concerned about the air circulation in our space. We were happy to find these hospital-grade filters in a size that works for our system.
I would expect that you would print the MERV rating on all your filters. Our customers think we are just putting in MERV 11s and telling them that they are 13s and there is no proof otherwise except the sheet of paper that is inside the plastic.
filter was cheeseyier than I thought it would be, much thinner than the Honeywell filter I replaced I seriously doubt it is a merv 13, the construction was poor