According to the New York State American Academy of Pediatrics, carbon dioxide and oxygen particles are much smaller than viral particles and can flow freely through a mask while viral particles may be trapped. Cloth masks worn by the general public are not air tight and allow for air flow, in comparison to the more sealed N95 masks that healthcare professionals wear. Periodic mask breaks throughout the day are also recommended. It is nearly impossible for a child to have decreased oxygenation or increased carbon dioxide levels from wearing a cloth mask.