Every day, Tulsi gives out oxygen for 20 out of the 24 hours day. It absorbs toxic pollutants from the air such as carbon dioxide, carbon monoxide and sulphur dioxide.
The 'peepal' tree, which is also known as 'sacred fig', releases oxygen round-the-clock unlike many other plants, which release oxygen only during the day.
Peepal Tree
It is the most popular oxygen-producing tree which emits oxygen in the air. This tree is also known as Pipal, Peepul, Bodhi Vriksha, Pippol, Ashwathama, Arayal, Plaksha, Arayal, Ravichettu, Pippalam, Piplo, and Aralimara in different languages.
Yellow Poplar – Also known as the tulip tree, the Yellow Poplar is considered as the top C02 scrubber as revealed by a New York City study.
One should not sleep under a tree at night because during night time plants take in oxygen and release carbon dioxide. So the amount of carbon dioxide in the air becomes more which leads to respiratory problems.
Chrysanthemums (Chrysanthemum morifolium)
Florist's chrysanthemums or “mums” are ranked the highest for air purification. They're shown to eliminate common toxins as well as ammonia. Treat yourself to a fresh pot, as this flower only blooms for about six weeks.
Final Answer: Sleeping under a tree is not advisable at night, since photosynthesis does not occur, oxygen is not being produced by the trees. In addition to this, the trees continue respiring thereby causing the amount of carbon dioxide to be increased and the amount of oxygen to be reduced.
The peepal tree, also called Ficus religiosa, belonging to the family Moraceae, is a variation of the fig tree known as the bodhi tree. The word 'Ficus' in Latin refers to 'fig', the fruit of the tree and the word 'Religiosa' refers to 'religion', as it is sacred in both Buddhism and Hinduism.
Peepal tree should not be uprooted, it is considered inauspicious to do so, if it has to be cut under any special circumstances, then first worship it. It should only be plucked on Sunday.
Neem Plant:
Neem is recognized as one of the topmost beneficial plants in India. It has so many medicinal values. If you ask which tree gives oxygen for 24 hours, then the answer will be neem tree as well. It also absorbs CO2 at night time.
Spider Plant
NASA's study found that spider plants were able to remove 95% of chemicals from the air in 24 hours. Spider plants filter toxins including: carbon monoxide.
Plants still do something. According to the scientists' calculations, you'll need between 100 to 1,000 plants for every 10 square feet to start making a measurable difference in fighting indoor air pollution. So, if you live in a home that's roughly 1,000 square feet, you'll need anywhere from 10,000 to 100,000 plants.
It's fairly common to hear, "you shouldn't keep houseplants in the bedroom because they're not safe". This is based on the fact that most plants will release Carbon Dioxide and absorb Oxygen from the air while you're sleeping.
"Since plants are really active and represent growth, they may not be great for such a passive, restful, quiet room," explains feng shui master and mbg class instructor Dana Claudat.
Plants can reduce feelings of anxiety and depression
A 2007 study found a bacterium in plant soil called Mycobacterium vaccae that triggers the release of serotonin, which lifts mood and reduces anxiety. Therefore, interaction with indoor or outdoor plants can alleviate symptoms of depression.
Many species of indoor plants can actually help absorb mold and spores. Studies have shown that rooms with air-filtering houseplants can improve this air quality by 60%. It is highly recommended to keep one good sized house plant per 100 square feet to help clean polluted or dirt-filled air.
It was conifers, such as pines and cypresses, that were the best pollution filters.
This biochemical reaction is the same for all plants, but the faster a plant grows, the more carbon dioxide it will use up per second. By that measure, bamboo might be the best at sucking up CO₂.
The most efficient carbon absorbing trees are East Palatka holly, slash pine, live oak, southern magnolia and bald cypress. Palms are the least effective at carbon sequestration.
Because at night, the plants and trees perform the process of respiration where they absorb oxygen and releases carbon dioxide. While, it is wise to sleep under the tree in the day time, as during the day time the plants perform photosynthesis where trees absorb carbon dioxide and release oxygen gas.
Some plants such as Peepal tree can uptake CO² during the night as well because of their ability to perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM).