I got the Taymac freebies too, but I find them to require way too much thought by the user (I am trying them at my home). In an ISO facility or one where there is a full-time safety program, they might work. They do seal nicely for people who know what they are doing.
The problem is that the typical consumer isn't going to go to the trouble of ensuring that the cover is "properly" latched shut to maintain compliance. They are going to plug in the cord and walk away.
Good concept, but I don't see these being big sellers. There is just too much of a requirement to think about securing the cover properly. People are in too much of a hurry to worry about that stuff.
