Sound pressure is tiny pressure deviation, and human hearing spans a specific Pa range

Evidence

Sound pressure, on the other hand, is the deviation of pressure from the static pressure in a medium, most often air, due to a sound wave at a specific point in space. Sound pressure values in air are typically much smaller than the static pressure. Sounds that human hearing can deal with are within the range of 20 · 10−6 to 50 Pa. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 194

Categorization

• DEFINE: Defines sound pressure as deviation from static pressure and gives the human hearing range in Pascals.
• XREF: connects to: Human hearing spans a ratio of millions between faintest and painful sound — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 604