Well.ca pharmacy recent experience with face masks

I just got back from the well.ca pharmacy on Queen Street in downtown Toronto. They have a sign in the front saying “we sell face masks “ so I went in and asked what kind they had. The Lady working there said they had a 5 pack of N95 mask’s for $29.99. They’ve designed it now so you can’t physically enter the store, there’s a barricade between you and the cashier and they’ve put a debit/credit terminal on a table so that you can still pay without actually entering the store. Anyways, she puts the masks in a bag and hands them over to me and I leave. Got home to realize they are actually KN95 masks. I’ve googled if there’s a difference and some say there is and some say there isn’t. Is this something to be up in arms about? Even the receipt says N95, not KN95.