Indian researcher Kamal Meattle talks about three common houseplants that can improve indoor air quality dramatically.
Dr. James DelPrince, Professor, Plant and Soil Sciences with Mississippi State University, talks about what is happening technically with the plants to clean the air.
Larry O’Neill of Larry’s Garden in Florida gives numbers of plants per sq ft and several plant suggestions. He also talks about how to care for the houseplants.
A different (long) list of air clearing suggestions from New York City:
Neville and Riann in Australia give their suggestions for houseplants to clean the air and tips on caring for them.
Here’s a good article from the Toronto Botanical Gardens detailing the common household contaminants with a list of houseplants that can remove them.