Using pulse oximeter at home to test oxygen level in blood. — Stock photos

"Using pulse oximeter at home to test oxygen level in blood." is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1067 x 1600px, 1733 x 2600px, 4827 x 7241px. The minimum price for an image is 49$. Image in the highest quality is 4827 x 7241px, 300 dpi, and costs 449$.