Para.Cool™
Cooling without Power
By Design
Parasol Innovations’s breakthrough material, Para.Cool™, controls how heat leaves a surface — without electricity or refrigerants.
By reflecting sunlight and selectively emitting thermal energy through the atmospheric window, Para.Cool™ enables horizonal and vertical surfaces to cool themselves — even in full sun.
Available as a coating, film, panel, or textile, Para.Cool™ applies easily across buildings, vehicles, electronics, and agriculture.
This passive cooling dramatically reduces energy demand, cuts emissions, and helps break the global cooling-emissions cycle.
Selective Passive Radiative Cooling
Para.Cool™ goes beyond solar reflection. It passively radiates thermal energy using tuned nanoparticles — enabling surfaces to cool below ambient temperature, even in full sunlight.
This breakthrough selective radiative process works with no electricity, no refrigerants, and no moving parts — delivering powerful cooling (and avoiding heat penalties in cold weather) with zero emissions.
The Atmospheric Window
Most of Earth’s atmosphere traps heat — but between 8–13 microns in the infrared spectrum, there’s a rare escape hatch: the atmospheric window.
Para.Cool™ is precisely tuned to this range, allowing heat to pass through the atmosphere and escape into space. Instead of just moving heat around, Para.Cool™ removes it entirely — slashing demand for energy-intensive cooling.
Why Para.Cool™ Is Different?
Para.Cool™ isn’t just another white paint or foil. Its patent-pending technology combines solar reflection with precision-tuned thermal emission — enabling powerful cooling and passive heating.
✔ Cools below ambient temperature in warm weather
✔ Avoids heat penalties in cold weather
✔ No electricity, refrigerants, or moving parts
✔ Works on rooftops, walls, windows, trucks, enclosures, and more
✔ Cuts energy use and emissions — year-round