Yes, if the downstream instruments or equipment is sensitive to moisture. Air is heated when it is compressed. As the air cools liquid moisture condenses out. In addition to an air dryer, a manual or timed automatic tank drain is usually installed to periodically drain trapped moisture in the receiver or tank.
Pneumatic Products
Usually ordinary air is used in a pneumatic system.
A hair dryer is actually not a good example of a pneumatic system. A pneumatic or hydrologic system uses fluid (gas or liquid) to transfer force over a distance. Hair dryers lack almost all components found in a pneumatic system. The internal operation of a hair drier is simple, a fan creates a high pressure air pocket on the heating element, and this high pressure air pocket cause air to be sucked in the back, and pushed out the blowing end. Hopefully this helps your endeavors. J. Salsieder
A hair dryer is actually not a good example of a pneumatic system. A pneumatic or hydrologic system uses fluid (gas or liquid) to transfer force over a distance. Hair dryers lack almost all components found in a pneumatic system. The internal operation of a hair drier is simple, a fan creates a high pressure air pocket on the heating element, and this high pressure air pocket cause air to be sucked in the back, and pushed out the blowing end. Hopefully this helps your endeavors. J. Salsieder
Pneumatic braking system utilizes compressed air to stop the motion in vehicles.
The size is different. This depends on the air pressure in the pneumatic system.
Yes there is. Pneumatic valve springs. They are metal bellows that have air in them. Their use is in replacing metal wire springs in a high-speed combustion engine. An example would be formula one engines.
human respiratory uses air pressure like pneumatic system does
Sand blasting uses air pressure as an ejector within the blasting process. This is how the pneumatic system is used in a pneumatic sand or paint blaster.
Gas, usually air.
Compressed air production.
It depends on air pressure in the pneumatic system. You pneumatic systems for high and low air pressure to force change. This is the compressor power.