As the weather gets colder in Canada, we understand some customers may be concerned about the sub-zero temperatures during the shipment of Rapid Test Kits. Transport temperatures dipping below 0°C for short durations of time will not have an adverse effect on the test, or the buffer liquid. Recommendation:It’s important to bring the tests to room temperature before adding the sample into the test, as low ambient temperatures when conducting the test may cause false results. We recommend letting the test kit contents sit out for 4-6 hours before use.