Delos DFS systems
Not all air purification systems are created equal. ParticleOne only partners with producers of validated technology and solutions. Having evaluated over 160 air-quality products against key product criteria, Delos…
Activity
When setting up a space the selected “activity” defines the rate at which air-borne particles are expelled by the individuals in the space. The quantity of expelled particles varies…
Vaccination data
Vaccination data is use in the algorithm for both COVID (SARS-CoV-2) and influenza. COVID For COVID, vaccination data is separated into two distinct categories corresponding to two levels of…
Upper-room UVGI
Upper-room ultraviolet germicidal irradiation (UVGI) is an air-purification technique. The system places special ultraviolet (UV) lamps in the upper region of a space to expose air to their light,…
Testing program
Testing program Human testing or screening involves the direct identification of infected individuals using authorized medical devices. Testing can be represented in the model as a reduction factor on…
Subcategory
Defines the more specific use of a space within the context of the space type. For example, within an office, a subcategory option may include lobbies, washrooms, open office…
Space type
How a space is generally used, as per a drop-down list of typical building usages, including office, retail, or healthcare facility. The space type can be used in conjunction…
Occupancy
Occupancy is the maximum number of people that typically occupy a space under normal operating conditions. Users input this maximum typical value when setting up a space and running…
Occupancy schedule
The occupancy schedule is an hour-by-hour breakdown of occupancy levels in the space. The schedule defines occupancy as a percentage of inputted maximum occupancy over a typical 24-hour period.…
Mechanical system types
Type 1: High mixing ventilation High mixing systems have both supply and return air located in the upper half of the room, typically at or near the ceiling. In…
Enhanced cleaning
Enhanced cleaning involves the implementation of effective cleaning and disinfecting protocols that help to reduce the risk of disease transmission. COVID-19, and many other respiratory illnesses, are primarily spread…
Filtration
Most mechanical air systems will have a filter to clean air before it enters the space. The effectiveness of the filter is rated through a system called MERV (minimum…
Airflow
Continuous operation Many buildings have mechanical systems capable of cycling on or off depending on the demands (typically temperature) of the space. Ventilation and air quality are critical to…
Occupant profile
The description that reflects the majority of occupants in the space. This parameter is used to determine the breathing rate of the occupants that, in turn, affects risk in…
Air-cleaning devices
In-room or portable air-cleaning devices can remove dust, allergens, smoke, and viruses from a space. Most commercial devices will specify a clean air delivery rate (CADR), which is typically…