This Slurry Lagoon Toxic Gas No Entry Sign is perfect for use as a warning sign where there is a slurry lagoon and potential toxic gas. Designed to be used outside in a wide range of situations on farms and estates, where there may be a slurry lagoon present, it is fully waterproof and is used to inform and warn people of a potential hazard that may be present and care should be exercised. The Health and Safety (Safety Signs and Signals) Regulations 1996, recommend that where a risk cannot be completely removed a suitable warning sign should be displayed to warn people of a possible danger.