I would look not to the maintaince of the plant, but the effectiveness of it producing oxygen.

Dr. Maoshing Ni suggests: "Most effective are indoor palms, English ivy, ficuses, peace lilies, and chrysanthemums." But adds, "certainly most leafy indoor plants are fine."

You can read more from Dr. Maoshing Ni in his articles: Plants and Oxygen: An Explanation

Live Plants vs Silk Plants for Office Decoration

Plants are a great way to liven up your office. However, you need to be sure and use live plants. They add oxygen and bring you back to earth.

Silk plants are just a fancy way to collect dust and let people know you are lazy and don't really care about the environment or your office!

Freshen up your office with some nice plants and flowers.

I remember in Costa Rica where all kinds of lovely plants are available for very cheap, many locals seemed obessed with plastic plants and flowers. Why do you want to live in a plastic box when nature is right there for you?

Use live plants for an extra splash of elegance to your home or office.