Plants are not any better than air purifiers and in fact air purifiers will purify the air better than any plants can.
However plants can be good air purifiers and remove some pollutants, their air purifying capabilities are minimal when compared to an actual air purifier.
Air purifiers with HEPA filters can remove a much higher percentage of pollutants such as dust, pollen and pet dander than even the best air purifying plants.
The best plant for air purification 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 and purifies the air.
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.