The Classic Headnet is fine-meshed and especially suitable for providing protection against insects that are so small in size. Ideal for use for hiking, fishing and camping in the wild . The mesh size of a midge proof net is 900. Due to the large number of holes per square inch (2.54 cm), the air flow in this net is lower compared to other bed nets. A midgeproof net is therefore not suitable for (sub)tropical destinations as users can feel stifled. Care Plus mosquito nets are manufactured entirely in line with the guidelines issued by the World Health Organization (WHO). This means that all mosquito nets are manufactured with a mesh size of min. 156 holes per square inch (2.54 cm) a fibre thickness of 75 denier, and a quadrilateral, materialsaving rhombus mesh pattern. Classic from Careplus • Thanks to the green colour you can look through the net with ease Careplus are manufactured to World Health Organization specifications. This means that all mosquito nets have at least 156 holes per square inch (2.54 centimetres) and use 75-denier material.