In March 2025, concerns related to the Angus Enhanced prompted us to immediately remove the product from sale and proactively issue refunds or offer replacements to all affected customers who purchased the device from To the Cloud Vapor Store.
The issue came to light after a user reported finding material that appeared to be fiberglass insulation inside an Angus Enhanced unit. Although the material was located outside of the vapor path, its presence was understandably concerning, particularly for customers who had been using the Angus Enhanced Vaporizer. Below you can see an image from the Verdampft Nochmal teardown.
Obtaining clear and consistent information from YLLVAPE proved challenging, and several aspects of the initial explanations were difficult to reconcile. In early communications, YLLVAPE stated that the material in question was a glass fiber (not fiberglass) and emphasized that it was fully isolated and sealed in a way that would prevent any exposure to the vapor path. We also would like to note that Storz & Bickel uses a ceramic fiber insulation in products such as the Volcano, which is also isolated from the airpath. While ceramic fiber is not fiberglass, it is still not a material consumers want to inhale.
YLLVAPE then reached out to us again stating that the material was polybenzoxazole (PBO) rather than any form of glass fiber. PBO is a high-performance synthetic polymer commonly used in demanding industrial applications and would generally be considered a far more acceptable insulation material than fiberglass, which carries more significant concern.
It should also be noted YLLVAPE is a Chinese company and we are working with an account rep where the language barrier can be an issue and responses to our emails are not exactly company official statements.
The updated Angus Enhanced
To address the issue, YLLVAPE released an updated version of the Angus Enhanced that replaced any composite insulation materials with a metal insulator tube. This design change of course raised questions as to why such an update was made if PBO had been the original insulation material. The initial confusion in YLLVAPE’s messaging — including early references to “glass fiber” — significantly impacted consumer & retailer confidence alike, and many users publicly stated they would no longer purchase YLLVAPE products despite the company’s otherwise strong product lineup. I still see the Original YLLVAPE Angus as one of the best values out there for vapor quality.
Tearing Down the OlD ANgus Enhanced
In tearing apart the units which customers had returned to us, the insulation did not appear to be the same as shown in the initial Reddit complaint. We reached out to a local materials testing facility however the quotes were in the thousands of dollars which was out of our budget to get a confirmed read out of what the material is. One of the engineers did say he did not believe it to be fiberglass by looking at the picture. (This was also what CHATGPT had told us) He also did say he would look at it through a microscope for $75 and give us a yaay or nay to fiberglass but that really is not sufficient enough for us to take to the bank. Not a good look for us to say “ Steve from a materials testing lab down the street said it was not fiberglass but couldn’t say what it was.”
So did YLLVAPE once use fiberglass and then make the shift to PBO ? Was it always PBO and then YLLVAPE felt compelled to remove and replace with the metal tubing insulation once the accusations started flying ? Whatever it may be many retailers who sold the Angus Enhanced have since pulled the YLLVAPE Angus Enhanced due to the concerns with the old unit.
We still wish to find out what material this may be so if anyone reading this has any access to legitimate materials testing or can perform it themselves and give a report of what insulation material was used we would be able to send you a sample.
We have begun selling the updated Angus Enhanced again given the new heating element is now insulated with an alloy and no polymer or elastomeric potting compounds are used. We wanted to put this post out to be as transparent as possible in doing so.
