WELL AP flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Air Quality precondition A01

WELL's mandatory requirement that projects meet ASHRAE 62.1 minimum outdoor-air rates (ASHRAE 62.2 for residential) and prohibit indoor smoking throughout the project.

MERV 13 filtration

Minimum Efficiency Reporting Value 13 filters capture finer particles; WELL's enhanced-filtration features reference MERV 13 or ISO ePM1 50% as the benchmark rating.

CO2 as ventilation proxy

Carbon dioxide rises with occupancy and indicates whether ventilation is adequate; WELL requires CO2 monitoring in regularly occupied spaces with visible displays and alerts.

Entryway systems (3 m)

Grilles, grates, or mats at main entrances that extend at least 3 m (10 ft) in the direction of travel and are cleaned regularly to capture tracked-in pollutants.

Lead limit 0.01 mg/L

WELL's water contaminant threshold for lead is 0.01 mg/L (10 ppb), stricter than the US EPA action level of 15 ppb; point-of-use filtration is a common remedy.

Legionella management plan

A documented program following ANSI/ASHRAE Standard 188 that identifies building water systems, control points, and monitoring to prevent Legionella amplification and exposure.

Drinking water access distance

WELL expects free drinking water within 30 m (100 ft) of all occupants on each floor, supported by signage and bottle-filling stations that displace bottled water.

Fruits and vegetables precondition

N01 requires that at least one fruit and at least one vegetable be available and visibly accessible wherever food is sold or provided in the project.

Nutritional transparency

A WELL precondition requiring calorie, macronutrient, serving-size, and ingredient information to be displayed or readily available for all food items offered on site.

Major food allergens

Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soy: the allergens that must be identified on menus and packaged foods in WELL food service.

Equivalent melanopic lux

A measure of light's circadian-effective intensity that weights illuminance by the ipRGC response, peaking near 490 nm; WELL circadian features are written in EML.

215 lux ambient target

WELL's visual lighting design benchmark of 215 lux (20 footcandles) at work surfaces in regularly occupied spaces, delivered with dimmable, zone-controlled electric lighting.

Spatial daylight autonomy

The percentage of floor area reaching a 300 lux target for at least 50% of occupied hours, reported by daylight simulation and paired with annual sunlight exposure.

UGR 19 glare limit

A Unified Glare Rating of 19 is WELL's threshold for luminaires in regularly occupied spaces; lower values mean less discomfort glare from electric light.

150 minutes weekly activity

The WHO and US guideline WELL references: 150 minutes of moderate or 75 minutes of vigorous aerobic activity weekly, plus two muscle-strengthening sessions.

Point-of-decision prompt

Signage placed at elevators or stairs that encourages stair use, paired in WELL with stairs that are visible, attractive, well-lit, and open to all occupants.

Sit-stand workstation

A height-adjustable desk that lets occupants alternate seated and standing work; WELL credits active furnishings that interrupt continuous sitting time.

PMV and PPD

Predicted Mean Vote and Predicted Percentage Dissatisfied from ASHRAE 55; WELL requires PMV between -0.5 and +0.5 and PPD at or below 10%.

30-60% relative humidity

WELL's target humidity band; below 30% causes dryness and eye or respiratory irritation, while above 60% risks condensation and microbial growth.

Radiant floor temperature band

ASHRAE 55 and WELL keep occupied floor surface temperatures between 19 C and 29 C (66-84 F) to limit radiant discomfort at the feet.

Reverberation time RT60

The number of seconds needed for sound to decay 60 dB; WELL targets about 0.6 s in enclosed rooms and 0.8 s or less in open areas.

Sound masking system

A broadband background signal, typically 40-45 dBA in open offices, that raises the noise floor and reduces speech intelligibility and distraction.

STC rating

Sound Transmission Class rates how well a wall, floor, or door blocks airborne sound; WELL uses STC 45-50 targets between enclosed rooms and noisy spaces.

CDPH Standard Method v1.2

The emissions test protocol, also called Section 01350, used to measure VOC emissions from interior products; WELL compares results with its TVOC and formaldehyde limits.

Health Product Declaration

A standardized disclosure of a building product's contents and associated health hazards, used to earn WELL Materials transparency points during specification.

TSCA Title VI formaldehyde

A US federal rule limiting formaldehyde emissions from composite wood; WELL requires compliant or no-added-formaldehyde boards in furniture, cabinetry, and millwork.

Red List chemicals

The Living Building Challenge list of substances to avoid, including lead, mercury, PVC, and formaldehyde; WELL rewards projects that document their reduction.

Biophilic design

Design that incorporates nature, such as views, daylight, plants, water, natural materials, and patterns, to reduce stress and support attention under WELL Mind.

Restorative space

A quiet room, nap room, or meditation area set apart from work zones and acoustically isolated, credited under WELL Mind for stress recovery.

Mental health policy

A written organizational commitment covering mental health coverage, employee assistance programs, and flexible schedules, credited under WELL Mind.

Integrative design charrette

An early collaborative workshop with owner, designers, facilities staff, and occupants that sets and documents health and wellness goals for the project.

AED and first aid

An automated external defibrillator plus stocked first aid kits in accessible locations, supported by a written emergency response plan and regular drills.