Tables

These are surfaces that require more frequent and thorough sanitization. Cleaning protocols should list these surfaces within the project and incorporate the correct cleaning instructions accordingly. Based on CDC Environmental Checklist for Monitoring Terminal Cleaning.

Non-porous

• Tabletops
• Doorknobs
• Elevator buttons
• Telephones
• Public digital devices and keyboards
• Light switches
• Chairs
• Bathroom handles and fixtures
• Countertops in bathrooms
• Toilet handles and lids
• Bathtubs and shower walls and floor
• Interior shower and bath surfaces
• Kitchen handles and fixtures
• Countertops in kitchens
• Non-disposable medical devices
• Bed railing
• Serving trays and bed tables

Porous

• Rugs
• Upholstered furniture covers
• Fabric curtains
• Towels
• Bedding: linens, pillow cases and comforter

For up-to-date and immediate San Francisco Hazard Review Process evaluation results, the Pesticide Research Institute's PestSmart tool or Pesticide Product Evaluator tool may be used.

If a pesticide has not yet been evaluated by the Pesticide Research Institute's tools above, use the Guide to the San Francisco's Reduced Risk Pesticide List Hazard Tier Review Process, which outlines the procedure for evaluating pesticides.

Table A3 was removed from the WELL Building Standard as part of the Q2 2017 Addenda process. However, please note that the remaining tables (Table A4 and Table A5) were not renumbered so that project teams that registered prior to the release of the Q2 addenda can continue to access these tables as they had previously.

Cleaning Practice Evaluation

An effective cleaning protocol must consider equipment use and staff training. A project's cleaning practice must include or be evaluated to incorporate the following changes and/or additions.

Cleaning, Disinfection and Hand Hygiene Product Selection

By establishing criteria that consider human health endpoints, certified cleaning products eliminate harmful ingredient contents and reduce potential associated hazards. Cleaning, disinfection, sanitization, hand soap, and sanitizers selected for use must meet the below criteria. Alternatively, projects may use products labeled as "safer" or "healthier" by a Type 1 eco-labeling program, as defined by ISO 14024:1999 (or more recent version) and developed by a member of the Global Ecolabelling Network (GEN) or labeled as such by a third-party certification recognized by the government where the project is located. These include products certified as EPA’s Safer Choice, GreenSeal, Environmental Choice New Zealand, EU Ecolabel, Nordic Ecolabel, etc.

1. Cleaning products, per appropriate functional class or use case, are not formulated or manufactured with intentionally added ingredients that are:
   1. Classified under the Globally Harmonized System (GHS) with one or more of following hazard statements: H340 (May cause genetic defects), H350 (May cause cancer), or H360 (May damage fertility of the unborn child)
   2. Classified under GHS with the following hazard statement: H372 (Causes damage to organs through prolonged or repeated exposure)
   3. Classified under the Globally Harmonized System (GHS) with one or more of following hazard statements: H317 (May cause an allergic skin reaction), H334 (may cause allergy or asthma symptoms or breathing difficulties if inhaled).
2. Soaps, shampoos and hand sanitizers provided by the project:
   1. Use no antimicrobial agents (other than as a preservative) except where prescribed by health codes, public health advisories or regulations, such as food service and health care requirements.

Disinfection and Sanitization

High-touch surfaces present increased risk for contamination, particularly in high transit areas. A cleaning protocol must take into account the degree to which disinfection and sanitization are necessary. Unnecessary disinfection and sanitization can negatively impact immune health. Disinfection and sanitization reduce exposure to microorganisms and parasites that can result in decreased disease and illness, however these practices are also increasingly linked to a rising prevalence of hypersensitivity disorders and autoimmune diseases, especially in industrialized nations.

To effectively apply these cleaning principals, projects must:

1. Maintain a list of high touch surfaces.
2. Limit disinfection to high-touch surfaces.

Entryway Maintenance

Entryway maintenance and care is critical to minimizing dirt and pollutants tracked in from the outdoor environment. Clean and well-maintained entryways can contribute greatly to improved indoor air quality.

This table indicates allowable mercury limits in lamps, as referred to in the Fundamental Material Safety feature. Values from LEED PBT source reduction - mercury prerequisite

Fluorescent

High-pressure sodium

This table specifies appropriate temperature ranges for storing produce. Information is adapted from the Cornell Storage Guidelines for Fruits and Vegetables.

The Equivalent Melanopic Lux (EML) is a measurement of light's effects on the circadian cycle.

This unit Equivalent Melanopic Lux (EML) was proposed by Lucas and others (Lucas et al., "Measuring and using light in the melanopsin age." Trends in Neuroscience, Jan 2014). The authors provided a toolbox which for a desired spectrum derives equivalent “α-opic” lux for each of the five photoreceptors in the eye (three cones, rods, and the ipRGCs). The authors selected scaling constants such that each of the values would be identical to each other and the standard definition of lux for a light spectrum of perfectly uniform energy (CIE Standard Illuminant E).

Given a spectrum of light, each equivalent α-opic lux is related to each other by a constant.

To calculate the equivalent melanopic lux (EML), multiply the visual lux (L) designed for or measured in a building by this ratio (R): EML = L × R. For example, if incandescent lights provide 200 lux in a space, they will also produce 108 equivalent melanopic lux. If daylight is modeled to provide the same visual brightness (200 lux), it will also provide 220 equivalent melanopic lux.

Projects are encouraged to use this approach to obtain more accurate results. Both the authors of the journal article and the IWBI have spreadsheets to aid in this calculation.

To calculate the melanopic ratio of light, start by obtaining the light output of the lamp at each 5 nm increment, either from manufacturer or by using a spectrometer. Then, multiply the output by the melanopic and visual curves given below to get the melanopic and visual responses. Finally, divide the total melanopic response by the total visual response and multiply the quotient by 1.218.

Although the ipRGCs have a peak sensitivity at about 480 nm, the melanopic response in this table peaks at 490 nm because it takes into account the adult eye's lens, which preferentially transmits longer wavelength light.