not sure that there is any duty of disclosure, the environment information is on the box so presumably it has been "disclosed" to the customer.
You might have better success with fit for purpose. BUT ...
my late father was involved with several standards committees during his working years. I recall him commenting that at one time the committee dealing with domestic refrigeration proposed 35°C as the upper test limit for a fridge. The implication being that a fridge didn't need to keep the contents cool if the environmental temperature exceeded 35°C. As you will be aware, summer temperatures greater than 40°C are fairly common across much of Australia. Go figure.
There could be a similar situation here -- an obscure Australian standard has defined the "normal" temperature range within Australian houses to be 14 to 28°C.