Air- Preconditions Flashcards
___ ventilation is the movement of air into and out of a space primarily through intentionally provided openings (such as windows and doors), through nonpowered ventilators, or by infiltration.
Natural
__ of Feature 01, Air Quality Standards, addresses the levels of formaldehyde and volatile organic compounds (VOCs) in the air.
Part 1: Standards for Volatile Substances
___ is a colorless, odorless, and highly poisonous gas formed by incomplete combustion.
Carbon monoxide
___ of Feature 03 requires that all HVAC systems (within the last five years) undergo testing and balancing after the substantial completion, but before occupancy, of a project.
Part 3: System Balancing
The two types of filters addressed in Feature ___, Air Filtration, are carbon filters and media filters.
05
Part 2: Mold Inspections of Feature ___, Microbe and Mold Control, requires that a mold inspection be performed by the WELL assessor.
06
The goal of ___, is to reduce the amount of materials, products, and finishes used in building construction that can release VOCs into the interior of the building.
Feature 04, VOC Reduction
___ is a naturally occurring mineral that was commonly used in insulation because of its chemical and flame resistance, tensile strength, and sound absorption properties.
Asbestos
___ into the interior of a building can cause structural damage, mold growth, and negative effects on indoor air quality.
Moisture infiltration
___ of Feature 12, Moisture Management, requires the development of a narrative describing the use of moisture-tolerant materials and the protection of moisture-sensitive materials.
Part 4: Material Selection and Protection
A chemical that is used to destroy, repel, or control plants or animals.
Pesticide
Particulate matter 2.5 µm or smaller in diameter.
Fine particle (PM2.5)
A former commercially produced synthetic organic chemical compound that may be present in products and materials produced before the 1979 PCB ban.
Polychlorinated biphenyl (PCB)
A set of symptoms, such as headaches, fatigue, eye irritation, and breathing difficulties, believed to be caused by indoor pollutants and poor environmental control that typically affects workers in modern airtight office buildings.
Sick building syndrome (SBS)
An infectious biological agent such as a bacterium, virus, or fungus that is capable of causing disease in its host.
Pathogen
The triatomic form of oxygen that is hazardous to the respiratory system at ground level.
Ozone (O3)
A material containing carbon and hydrogen that evaporates and diffuses easily at ambient temperature and is emitted by a wide array of building materials, paints, wood preservatives, and other common consumer products.
Volatile organic compound (VOC)
A value assigned to an air filter that describes the amount of different types of particles removed when the filter is operating at the least effective point in its life.
Minimum efficiency reporting value (MERV)
Particulate matter larger than 2.5 micrometers (µm) and smaller than 10 µm in diameter.
Coarse particle (PM10)
A surface that is frequently touched by building users and occupants, including door handles, light switches, telephones, tabletops, and plumbing fixture handles.
High-touch surface
A complex mixture of elemental and organic carbon, salts, mineral and metal dust, ammonia, and water that coagulate together into tiny solids and globules.
Particulate matter
Ventilation provided by mechanically powered equipment, such as motor-driven fans and blowers, but not by devices such as wind-driven turbine ventilators and mechanically operated windows.
Mechanical ventilation
A naturally occurring poisonous metal element that can be found in the earth’s surface.
Mercury
A surface that is infrequently touched by building users and occupants, including floors, walls, window sills, mirrors, and light fixtures
Low-touch surface
A radioactive, carcinogenic noble gas generated from the decay of natural deposits of uranium
Radon
A naturally occurring metal found deep within the ground that was used in plumbing fixtures, lighting fixtures, and recycled building products.
Lead
A sterilization method that uses UV light to break down microorganisms by destroying their DNA.
Ultraviolet germicidal irradiation (UVGI)
The release of chemicals or particulates into the air from substances and solvents used in the manufacture of a building product.
Off-gassing
A colorless gas compound that is used for manufacturing melamine and phenolic resins, fertilizers, dyes, and embalming fluids.
Formaldehyde
