Crops help the house cool on hot days

Ferns, aloe vera, fig trees, landscaping help the house become cool and pleasant.

Aloe is not only effective in treating sunburned skin, it also helps to reduce indoor temperature and filter formaldehydes in the air, according to Simplemost.

This plant not only cool but also filter formaldehyd in the air.Scientists at NASA say ferns are one of the most effective air-cleaning plants.

The ficus tree, also known as fig tree helps indoor temperatures seem cool, reduce pollution and improve air quality.

One of the popular living room plants is the scent.They create moisture naturally.Ornamental plants can also filter benzene, formaldehyde and trichloroene in the air.

The betel nut tree requires only a small amount of light, watering just enough, can keep the air cool, good purification.

1. These are plants that NASA recommends growing indoors
2. 'Discovering' healthy home plants
3. Plants clean the air in the house