Does Betalux ™ (or another manufacturer) escape route signaling pose a health risk?

No, betalights (the general name for products such as escape signs from Betalux ™) consist of tubes filled with tritium gas. This gas has the property that it activates the fluorescent layer, so that the tubes emit a soft light. Tritium (symbol T or 3H) is a very light radioactive material, which is produced in small quantities in nature (atmosphere) by interaction of cosmic rays with deuterium nuclei in water vapor. The radioactive radiation from tritium does not penetrate human skin. Tritium can also be factory produced. However, the amount of radioactive radiation in betalight tubes is so small that it is hardly detectable and does not pose a health risk. The amount of radioactivity that ends up in the environment when a betalight tube breaks or burns is much less than our Ministry of Housing, Spatial Planning and the Environment and the US Nuclear Regulatory Commission find acceptable to the public and therefore does not pose a health risk. This certainly applies to Betalight tubes that are intact. These tubes are made of borosilicate glass. This glass is often used in the chemical and pharmaceutical industry (including in laboratories), is practically unbreakable, heat-resistant and has the additional advantage that it does not transmit the already low level of radioactive radiation from tritium. In short, Betalight tubes are completely safe and therefore do not pose a health risk.