Oxygen O2 Bubbles color filled icon
Chemical formula O2 with two round bubbles rising above the letter
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About the Oxygen O2 Bubbles color filled icon
A large capital O with a subscript 2 spells the chemical formula for oxygen, and two round bubbles of different sizes rise above it. The mark communicates breathable air, oxygen therapy and dissolved oxygen, which suits medical device interfaces, hospital signage, air purifier packaging, water treatment diagrams, chemistry lessons and scuba diving apps.
Letterforms are geometric, with the O drawn as an even heavy ring and the 2 kept small enough to read as a subscript rather than a separate character. It pairs with carbon dioxide, lungs and nitrogen icons. Keep it above 32 px so the subscript stays legible.
This is the colour filled version of the oxygen o2 bubbles icon: a flat, solid-colour shape that stands out in dashboards, marketing pages and app tiles where the icon needs to carry colour meaning.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
