A
is a drug delivery device used to deliver medicine in the form of a fine mist that can be inhaled (through a mouthpiece or a mask), into the lungs.

The correct answer is nebulizer.

Explanation:

An apparatus, which converts liquid medicine into a mist in order to cure some kind of conditions like asthma is known as a nebulizer. They can be both battery and electric run. They can be either large that are designed to sit on the table and be plugged into the wall, or can be small and portable.  

A nebulizer comprises a base that contains an air compressor, a small vessel, which is used for liquid medicine and a duct that attaches them together. A mask or a mouthpiece is present above the container that is, used by an individual in order to breathe in the mist.  

answer:

i don't believe the ocean is purple, but it might once have been:

as for the sky, according to nasa:

"sunlight reaches earth's atmosphere and is scattered in all directions by all the gases and particles in the air. blue light is scattered more than the other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time."