Abstract: A nose respirator device with a holder connected to a base. The holder has a top which is configured to sit on nasal bridge and is joined on each side with an arm which extends downward and joins the base which is configured to sit across subnasale underneath nose tip. The base contains two separate open cavities, each open cavity has an upper opening shaped like a cone suitable for insertion into a nostril. Each open cavity of the two separate open cavities can be further divided by a separator into two channels. Valves installed along inside wall of each channel control air flow as the valves are configured to open only in one direction when being pushed by air current. Filters can be fitted into each cavity or each channel within each cavity for air cleaning.

Abstract: A nose respirator device with a holder connected to a base. The holder has a top which is configured to sit on a nasal bridge and is joined on each side with an arm which extends downward and each arm joins the base which is configured to sit across a subnasale underneath nose tip. The base contains two separate open cavities, each open cavity has an upper opening shaped like a cone suitable for insertion into a nostril. Each open cavity of the two separate open cavities can be further divided by a separator into two channels. Valves installed along inside wall of each channel control air flow as the valves are configured to open only in one direction when being pushed by air current. Filters can be fitted into each cavity or each channel within each cavity for air cleaning.

Abstract: A methodology of detecting pathogens captured respectively from the inhalation and the exhalation in human breathing is disclosed. More particularly, a method is described for simultaneously detecting pathogens captured on sensors placed respectively inside an inhalation channel and an exhalation channel of a nose respirator.

Abstract: A nose respirator device with a holder connected to a base, the holder has a top sitting across the nasal bridge and two arms extending downward to join with the base, which sits across the subnasale and contains two open cavities with upper openings capable of being inserted into each nostril. Each cavity can be further divided by a separator into two channels for inhalation and exhalation, respectively. One-way air flow in each channel can be further ensured with valves, which open only in one direction upon the push of air current. Filters can be fitted into each cavity or channel for air cleaning. One or more attachments can be fitted onto the base for additional purposes, which include extra filtration and disinfection. The area within the holder and the base can be covered with a sheet, which can also be used for device classification and user identification.