An ear is said to be barostricted if there are problems with this pressure equalization.

There was a short wait for pressure equalization.

Devices assisting in pressure equalization include an ad hoc balloon applied to the nose, creating inflation by positive air pressure.

Sometimes they come with hole in center for pressure equalization.

There was a brief hiss of pressure equalization; then he stepped out into the room.

Other models contain three bulbous chambers allowing for a broader range of pressure equalization.

There was a hiss of pressure equalization.

A vent is a tube primarily placed to offer pressure equalization.

When we arrived at the airlock the powered ramp drew us inside and we waited for pressure equalization.

A measure of pressure equalization was required before he admitted them into the hull proper.