What is the best way to remove formaldehyde with onions?

Onion is a vegetable with relatively high nutritional value. Many people put some cut onions in newly renovated houses, which can also achieve a certain effect in expelling formaldehyde. However, you must pay attention that the effect of removing formaldehyde in this way is relatively limited. This also includes the fact that the effect of some ordinary ornamental plants in removing formaldehyde is relatively limited. The best way to remove formaldehyde is to open ventilation.

1. Ivy

Ivy is the most ideal variety for indoor and outdoor vertical greening. It is an evergreen vine with thin and soft branches and vines, aerial roots, and the ability to climb on other objects. It is a typical negative plant, not cold-resistant, and can remove formaldehyde. It can decompose formaldehyde present in carpets, insulation materials, plywood, and xylene hidden in wallpapers that is harmful to the kidneys.

2. Aloe Vera

Aloe vera is a perennial evergreen succulent plant with short, upright stems and thick, juicy, lanceolate leaves. It likes warm and dry climate, is not cold-resistant and cannot tolerate shade. It is not only a good absorber of formaldehyde, but also has strong medicinal value, such as bactericidal and beauty effects.

3. Agave

Agave is a perennial evergreen plant with tall plants, gray-green or blue-gray leaves, thorns on the leaf edges, and yellow-green flowers. It likes a warm, well-lit environment and is extremely drought-tolerant. It is also a good absorber of formaldehyde and can be used for making wine. The tequila made with it is very famous.

4. Tiger tail orchid

Tiger tail orchid has a strong ability to absorb formaldehyde. It can release a large amount of oxygen during the day and can absorb more than 80% of various harmful gases in a room of about 10 square meters. Two pots of tiger tail orchid can basically purify the air in an ordinary room.

5. Chlorophytum

One or two pots of spider plants in a room of 8 to 10 square meters can absorb more than 80% of harmful gases in the room. They have a strong ability to absorb formaldehyde, which is equivalent to an air purifier. It can kill 80% of harmful substances in the room within 24 hours and absorb 86% of formaldehyde. It can also absorb all carbon monoxide and nitrogen oxides emitted by household appliances.