Virtube aims to develop a contact-free aerosol delivery system that enhances the effectiveness of aerosol inhalation for children aged 0-4 years old by utilizing the blow-by method. The blow-by method is a technique where nebulized particles are directed towards the child’s face from a distance without the need for direct contact. The highest hospitalization rate of any age group in the U.S. is 0-4, according to the CDC.