Negative IonsNegative ions are the nature's own "anti-depressants". They create a positive effect on human biochemistry and is highly beneficial to our health and wellbeing.

Here's more information on what negative ions are, how they are produced and why they're good for us. If you've ever wondered how ionic air purifiers work, this article will answer all your questions!

What are negative ions?

An ion is an atom or molecule that has gained or lost an electron. In the air, there exists both positive and negative ions. Positive air ions are generally molecules of carbon dioxide that have lost an electron, whereas a negative air ion is generally a molecule of oxygen that has gained an electron.

In the air, negative ions attract particles of pollution and give them a negative charge, making them seek electrical 'ground' and causing them to fall harmlessly to the floor. This is how negative ions work to clean the air of pollutants and allergens like dust, odours, and harmful gases. You can then collect these harmful particles using normal cleaning activities, such as vacuuming or dusting.

How are negative ions produced?

Negative ions are produced in abundance in nature. Nature constantly produces negative ions to combat the pollution in the air.

Negative ions are produced naturally in a number of ways. For example - have you ever noticed how the air is stuffy before a storm but refreshing right after? It's because lightning produces a high concentration of negative ions, effectively purifying the air and making it invigorating.

Waterfalls are also a natural producer of negative ions. That's why you always feel so good and refreshed near waterfalls. The beach, mountains, and seashores also produce a high concentration of negative ions. At home, our shower is like a mini-waterfall that produces negative ions, which explains why we feel more refreshed after a nice shower.

But these negative ions that are plentiful in natural settings are dangerously low in the average home, office, or car. In nature such as waterfalls and mountains, there may be 50,000 to 450,000 negative ions per cubic centimeter (cc3), but in cities, rooms and offices, the concentration is less than 2,000 or as low as zero negative ions per cubic centimeter.

Ionmax's ionic air purifiers re-create nature's negative ions so that you can enjoy the many health benefits of nature's anti-depressants at home or in the office. Our air purifiers produce thousands to millions of negative ions per cubic centimeter, helping to not only clean the air of dust and pollutants, but also give you the refreshing, good feeling that nature provides.

Negative Ions

Why are negative ions good?

Research from leading institutions, along with thousands of worldwide studies, concur that negative ions are beneficial for us and positive ions are not! Dr. Svante August Arrhenius, a Swedish chemist who received the Nobel Prize in Chemistry in 1903, discovered that waterfalls and forests are full of negative ions. That is why the air is so fresh. Dr. Phillip Eduard Anton Lennard, at the turn of the 20th century, Nobel Prize Winner in Physics, confirmed that negative ions are found in very high density in the basin of waterfalls where we feel especially refreshed and re-energized. Dr. Jacob, Professor of Physiology with the Public Sanitation Institute of Harvard University acclaims negative ions as "Vitamins of the Air".

Collectively, studies have found that negative ions are beneficial to health as they:

  • increase the flow of oxygen to the brain, resulting in higher alertness, decreased drowsiness and higher mental energy;
  • protect against allergens in the air, helping to clean the air of pollutants and improve air quality;
  • increase oxygen levels in the blood, helping our bodies to recover faster from physical exhaustion and fatigue;
  • stabilise brain function, helping to calm and relax our body;
  • purify our blood by restoring a healthy, slightly alkaline pH balance to the blood;
  • increase our metabolism by stimulating the exchange of electronic substances in our cells;
  • strengthen immune system by promoting the production of globulin (proteins that are found extensively in blood plasma) in the blood, resulting in stronger resistance to illness;
  • balance autonomic nervous system by balancing the opposing sympathetic and parasympathetic branches of the autonomic nervous system;
  • promote better digestion by promoting the production of digestive enzymes and enhancing digestion;
  • promote cell rejuvenation by revitalizing cell metabolism;
  • increase serotonin, a hormone manufactured in our brains that helps us maintain a 'happy feeling' and keep our moods under control; and
  • produce more melatonin, which has a profound effect on improving our sleep.


Do you need a negative ion generator or ionic air purifier?

If you suffer from headaches, sleepiness, low attention spans and a general unwell feeling, it may be a side effect of spending too much time indoors where there is little to no negative ions. Simply take a walk in the outdoors or open up your windows to enjoy nature's negative ions and feel better instantly.

However for most of us city dwellers, it's more difficult due to higher pollution levels in the city and neighbouring suburbs. That's where a negative ion generator like our Ionmax ionic air purifiers come in handy.

Negative ion generators have been used for years to help rid indoor environments of allergens such as dust particles, pet dander, pollen, mould spores, cigarette smoke, VOCs (volatile organic compounds) and other harmful pollutants floating in the air.

These ionic air purifiers release hundreds and thousands of negative ions into the air, and these negative ions combine with positively-charged pollutants, causing them to fall to the floor or other surfaces where they can be cleaned or vacuumed up.

Negative ions can be more efficient than standard air purifiers that use filters, as they can remove finer particles than HEPA filters, electronic air cleaner, or other types of air purifiers. While a fan-forced air filter or purifier can only filter the air that is drawn through it, negative ions are dispersed throughout the room to clean and purify it.

Why not browse our range of air purifiers? They all have built-in negative ionisers that produce negative ions to clean the air and improve your general health.

For indoor humidity control, check out our humidifiers and dehumidifiers - most models also have negative ion generators built in that can be switched on or off according to your needs.