Flags can be purchased at local or online businesses (suggested search term: "air quality flags"). You will need five flags: green, yellow, orange, red, and purple. A maroon flag is also available for extremely hazardous air quality conditions. The purple and maroon flags might not be needed often, but would be important to have if there is an air quality alert due to a wildfire or other serious air quality episode. Organizations tend to order the 3' x 5' pennant style flags. The price per flag can be lower if you order multiple sets of flags at the same time, so consider joining with other organizations when you order.

Below are suggested color names and PMS (pantone matching system) numbers that your flag vendor may recognize. If you cannot get these exact colors, any similar green, yellow, orange, red, purple and maroon will do. The nylon flag colors are called:

• #349 Irish Green (PMS 3415c)
• #108 FM Yellow (PMS 102c)
• #151 Golden Poppy (PMS 151c)
• #485 Canada Red (PMS 186c)
• #2627 Pansy (PMS 2627c)
• #188 Brick Red (PMS 188c)

Fly the flag under any other flags you usually fly. If you don't have a flag pole, try a portable flag pole, wall bracket, or a flag hanger that attaches over a door.