Disposable triple packaging system for Infectious Substances Category A (UN 2814 and UN 2900) with the best cost-benefit ratio. An accurate solution to transport individually several samples which can house either flexible or rigid secondary packagings capable of capable of withstanding, without leakage, an internal pressure of 95 kPa (0.95 bar). It meets Packing Instruction P620 requirements and it is certified by an acredited laboratory.