What is it?
On the left, it is a cool looking rubber bulb for keeping precision equipment, like photo camera, dust free.
It is called Giottos Rocket Air Blower. It works great.
There are three sizes. Large is best in my opinion.
I got mine from The Filter Connection where they sell only professional photographic supplies.

The white bottle is the Eclipse 2 fl. oz. camera lens cleaning solution bought at the same web site.

You do not use both products together.
They are next to each other to show how large is the bulb.