The American Red Cross launched their "Missing Types" campaign to help increase blood donations this summer.

During the campaign the letters A, B and O (the main blood groups) will disappear from brands to help illustrate the critical role that every blood donor plays.

To donate blood with the American Red Cross you can download the donor app, visit RedCrossBlood.org or call 1-800-733-2767 to make an appointment or get more information.

Blood donors must be 17 years of age or 16 with parental consent, weigh at least 110 pounds and be in generally good health.