House some houseplants
Although the link isn’t definitive, houseplants have been shown to remove toxins from the air—and this could include some cancer-causing chemicals, which help with preventing cancer. In the limonene study, adding houseplants reduced the levels of formaldehyde indoors.
Especially effective were English ivy, ferns, geraniums, and lavender (which has the added benefits of smelling nice naturally and reducing stress). Previous studies, including one from the American Society for Horticultural Science, have also shown indoor plants to reduce formaldehyde and other chemicals.
‘It is evident from our results that certain species have the potential to improve interior environments and, in so doing, the health and well-being of the inhabitants,’ study author Kwang Jin Kim said.