The American Red Cross is asking all donors to give blood now to keep the blood supply strong this summer. The American Red Cross is asking all donors to give blood now to keep the blood supply strong ...

The wavelength is what determines light’s color, and these LEDs are amber (605-nanometer wavelength), light red (630 nm), deep red (680 nm), and near infrared (855 nm).

The Canadian Red Cross contributes to the overall mission of the Red Cross Red Crescent Movement worldwide in preventing or alleviating human suffering wherever it may be found. We support emergency ...