One of the users of my vaporizer recently had some problems with the cap popping off when vaporizing and asked what the problem could be. I went through the normal problems like blocked nozzle or dirty nozzle and went through the cleaning methods and then asked him to let me know how he got on with his treating. He came back to me with some interesting observations, he was using Florida labs OA as I had advised and he was helping out a friend with treatments and was using the friends OA supplied by a bee company which was stated to be 97% pure OA and this was where the problem was occurring. When he swopped over to the stuff from Florida labs which is 99.6% pure OA the problem went away. Now through the entire development of my vaporizers dating back to 2017 the only OA that I have ever used has been from Florida labs. So at the end of it all beware as all OA is not the same.