Proposed is an indoor quarantine system using an individual mask. The indoor quarantine system may include: an indoor headcount checking device including a headcount checking unit configured to check the number of persons who stay in an indoor space and a headcount providing unit configured to provide headcount information checked by the headcount checking unit to mobile terminals of indoor users; and a disinfection mask worn on an indoor user and activating a disinfection function in accordance with a disinfection command based on the indoor headcount information received from the mobile terminal of the indoor user to disinfect harmful substances around the indoor user.

Provided are a headgear stand and a headgear cleaner that is small-sized and has low power consumption, and that is capable of sterilizing and deodorizing headgear made of any material. A headgear cleaner 1-1 is provided with an ozone generator 2 and a voltage supply part 5. The ozone generator 2 is constituted from an ozone generator body 3-1 and a connecting part 4. The ozone generator body 3-1 forms a shape in which twelve leaf parts extend radially. The voltage supply part 5 supplies a voltage necessary for generating ozone to the ozone generator 2.

Provided are a headgear stand and a headgear cleaner that is small-sized and has low power consumption, and that is capable of sterilizing and deodorizing headgear made of any material. A headgear cleaner 1-1 is provided with an ozone generator 2 and a voltage supply part 5. The ozone generator 2 is constituted from an ozone generator body 3-1 and a connecting part 4. The ozone generator body 3-1 forms a shape in which twelve leaf parts extend radially. The voltage supply part 5 supplies a voltage necessary for generating ozone to the ozone generator 2.

A sterilizing method for sterilizing a sterilization object housed in a chamber 11 includes an ozone preparation step S504 for filling an inside of a buffer tank 34 with ozone gas, and an ozone injection step S505 for injecting the ozone gas filled in the inside of the buffer tank 34 into the chamber 11.

A sterilizing method for sterilizing a sterilization object housed in a chamber 11 includes an ozone preparation step S504 for filling an inside of a buffer tank 34 with ozone gas, and an ozone injection step S505 for injecting the ozone gas filled in the inside of the buffer tank 34 into the chamber 11.

A method and system of controlling a cohort of ozone gas generating devices. The method comprises identifying, at a computing device, a plurality of ozone gas generating devices that constitute the cohort, detecting, via at least one remote ozone gas sensor device located in a spatial area associated with the cohort in conjunction with one or more processors of the computing device, a concentration of ozone gas constituent of ambient air within the spatial area, and instructing, responsive to detecting the concentration of the ozone gas constituent as being one of above and below a predetermined threshold concentration, at least one ozone gas generating device of the cohort to perform one of increasing and decreasing a rate of ozone gas generation associated therewith.

A method and system of controlling a cohort of ozone gas generating devices. The method comprises identifying, at a computing device, a plurality of ozone gas generating devices that constitute the cohort, detecting, via at least one remote ozone gas sensor device located in a spatial area associated with the cohort in conjunction with one or more processors of the computing device, a concentration of ozone gas constituent of ambient air within the spatial area, and instructing, responsive to detecting the concentration of the ozone gas constituent as being one of above and below a predetermined threshold concentration, at least one ozone gas generating device of the cohort to perform one of increasing and decreasing a rate of ozone gas generation associated therewith.

A method and system of monitoring viral safety status associated with entry into a facility. The method comprises receiving, at a display user interface rendered at a mobile computing device, a selection of indicia representative of the facility, receiving, responsive to the selection, an ozone gas viral cleaning status of the facility, determining, based on the ozone gas viral cleaning status and at least one threshold entrant condition in association with an entrant category, a suitability for entrance into the facility and generating, at the display user interface, a notification in accordance with the suitability for entrance.

A method and system of monitoring viral safety status associated with entry into a facility. The method comprises receiving, at a display user interface rendered at a mobile computing device, a selection of indicia representative of the facility, receiving, responsive to the selection, an ozone gas viral cleaning status of the facility, determining, based on the ozone gas viral cleaning status and at least one threshold entrant condition in association with an entrant category, a suitability for entrance into the facility and generating, at the display user interface, a notification in accordance with the suitability for entrance.

A method and system of generating ozone gas. The method comprises receiving a stream of ambient air that includes at least oxygen gas, generating ozone gas based upon applying ultraviolet (UV) irradiation provided in accordance with a wavelength of 185 nanometer (nm) to at least a portion of the oxygen gas, the UV irradiation provided via an optical lamp module powered by a direct current (DC) voltage battery source, producing a modified air stream in accordance with the generating, and exhausting the modified air stream, the modified air stream having a higher concentration of ozone gas as compared with a trace concentration of ozone gas that is constituted in the stream of ambient air.