Circulating videos in various WhatsApp groups that share how to make tools to produce oxygen with simple tools.The materials used include a device that produces air bubbles in a fish pond or aerotor, water in a bottle, and a hose.The maker of the device claims oxygen can be "captured" from the water in the bottle.Then can oxygen be produced by itself as shown in the video?Head of the Department of Chemistry, Faculty of Science and Technology Universitas Airlangga Mochamad Zakki Fahmi said he disagreed with the claim.The way the pump works is only to suck air from one side and flow it on the other side."There is no gas filter," he told detikEdu, Tuesday (6/7/2021).Zakki also said the method in the video is not recommended.This method will only push air only to the patient not oxygen.This forces the lungs to work harder to filter oxygen.In fact, for patients who experience respiratory problems, the performance of the lungs has dropped from normal.Then according to Zakki this method is prone to contamination.Not only from pumping equipment that is unfit to produce pure oxygen, but also from air that enters without proper filtration."It is very possible that it still contains a lot of dirt, dust and harmful microorganisms," said the doctorate in chemistry, a graduate of the National Taiwan University Of Science And Technology."Water as an intermediary here causes the air that enters (in the body) to have high humidity and this is very risky to increase the water content in the lungs."So is it possible to get medical oxygen from simple equipment?According to Zakki, in order to produce oxygen with a high level of purity, the device designed must be able to filter out impurity particles both from the air and from the equipment.Then the tool must be able to filter the possibility of micro-organisms in the air and the tool and filter gases other than oxygen effectively."If these three things can be fulfilled, good oxygen will be obtained," he said.Meanwhile, the public also hunts for oxygen concentrators in various marketplace applications.Oxygen concentrator is the term used for small home-scale oxygen purifiers.While oxygen generator is a term for an oxygen purifier on a larger scale.Zakki said that many traders in the marketplace offer oxygen generators that are claimed to be able to increase industrial quality oxygen, are FDA certified (Food and Drug Administration) in the United States, and are able to purify oxygen up to 95%.According to Zakki, people might use the oxygen generator and produce their own medical oxygen.Meanwhile, according to him, the current oxygen concentrator does not yet offer a sufficiently pure oxygen level."But many oxygen generators claim up to 95%," he said.He explained that the oxygen generator basically works like a compressor that will filter the air around the device, purify it, and then produce purer oxygen.Zakki underlined, every place has a different gas and particulate content.This content also affects the quality of the oxygen produced."If a place has a high oxygen level, it will produce oxygen with a good level of purity. If the oxygen level is not too high, then there is a lot of dust, the oxygen yield will not be as good as a place with high oxygen levels. buy medical oxygen directly. Medical oxygen can guarantee the level (purity of oxygen) of the product," said Zakki.Zakki explained, there are several things that need to be considered in the production of medical oxygen itself.The first is to look for a place that is rich in oxygen and minimal particulate dust or other.Second, pay attention to the working mechanism of the tool."Don't let the industrial oxygen generator pay attention to the oil in it, because the oil is the lubricant for the pump. Medical oxygen is oil free, don't let there be oil in the oxygen," he explained.Zakki added that the generator material must not release compounds or materials into the oxygen that will be produced.In addition, easily corroded materials should not compose the generator components because they will cause particulates and others."The isolation system in this process must be maintained so that materials from outside do not enter, except for the chosen one (oxygen). For the production of oxygen itself, it depends on how sophisticated the equipment is. And the industry must already have parameters about that," said Zakki.Zakki reminded, oxygen generator products are accompanied by provisions for use, storage, and prevention of risks that may arise.Read these provisions so that there are no leaks, fires, or other unwanted things."In general what is stored is oxygen, it is prone to fire, because it is the main source of fire that can ignite. So we have to be careful in its use, don't get close to flammable items or fire. Then also pay attention to the surroundings, don't get close to tools electricity," said Zakki.He added, make sure the oxygen container or container does not leak and is well maintained.Oxygen tanks that are not properly maintained, or are not properly positioned, put a high risk of leakage or contamination of the oxygen cylinder."So you also have to take care of oxygen cylinders, avoid flammable items, electric tools, and fire," he explained.