Estonian startup Respiray launched its wearable air purifiers
that disinfect over 99% of inhalable air and said it has raised an undisclosed amount of additional funding from Jaan Tallinn, cofounder of Skype and early investor in DeepMind, and from former Hansapank head Indrek Neivelt.
The air purifier is based on two principles – the thermodynamics of breathing and the disinfection effect of ultraviolet light. When breathing, the majority of inhaled air comes from airflows that rise on the body surface of a person. This is contradictory to the general belief that breathing is more or less horizontal. For this reason, the product is strategically designed as a wearable device.