"We examined a dose-response relationship of plants placed in a university classroom with college students’ self-reported cognitive performance, mental and psychosomatic health, environmental quality perceptions, and objectively measured indoor air quality (IAQ) parameters. "
"Highlights:
• Indoor plant appearance impacts people's responses.
• Interest and beauty of indoor plants benefits well-being.
• Perceptions of indoor air quality are influenced by healthiness and appearance of plants.
• Shape ranked as the most important characteristic affecting plant attractiveness.
• People prefer indoor plants with rounded canopy contours."
" This review provides a comprehensive summary of the role and importance of indoor plants in human health and comfort according to the following four criteria: photosynthesis; transpiration; psychological effects; and purification."