The houseplant that produces the most oxygen is the Areca palm.
The Areca Palm is also called the Butterfly Palm or Golden Palm and is one of the houseplants that produces the most oxygen.
The Areca Palm is known if it's high oxygen generation capacity and air purifying abilities as noted by NASA research.
Areca Palms are tall, clumping palms that have smooth trunks which are reminiscent of bamboo clumps and their fronds are narrow.
Areca Palms reduce harmful substances in the air and increase the amount of oxygen in a room.
The Areca Palm is considered to be the best air purifying plant and it's warm colored stems do justice to it's alternative name of golden cane palm.
Other houseplants that produces the most oxygen include.
The snake plant.
Spider Plant.
Pothos.
And the Peace Lily.