What plants/trees put out a lot of oxygen?

Question:I'm looking to put a small tree and MORE plants in my room. Do people have recommendations on what plants and trees put out a good amount of oxygen? Thanks!

Answers:
They ALL do! Just pick plants that are pleasing to you that fit in with your decor. Make sure that you put the pot that you are going to plant a tree in on a base with casters so that you can move it. Some plants require more work than others, and must have certain lighting conditions, watering requirements, etc. Go to a local nursery and they can help you select plants that are ideal for your environment (and the advice is free!)

Good luck!