The oxygen concentrator is a kind of machine that produces oxygen, and its principle is to use air separation technology. The air is compressed with high density and then the difference in the condensation point of each component in the air is used to separate it from gas and liquid at a certain temperature, and then it is separated into oxygen and nitrogen by rectification. Next, let's take a look at what is the difference between oxygen concentration 3l and oxygen concentration 5l? Here are some answers.

When the human body is infected with a virus, immune cells are stimulated to produce specific antibodies. The two main types of specific antibodies produced include IgM antibodies and IgG antibodies. The former is produced in the initial immune response and is produced quickly and for a short period, while the latter is produced in the secondary immune response and is produced late and for a long period. Rapid immunoassay tests are mostly performed on test strips, and most of them apply the colloidal gold principle of antigenic antibodies. Let me introduce the novel coronavirus (SARS-COV-2) lgG/IgM antibody test kit (colloidal gold method) in detail next!

So what I am going to introduce next is the Rapid Neutralizing Antibody Test Kit for Novel Coronavirus (SARS-CoV2) (Colloidal Gold Method) in the Home Disposable Rapid Neutralizing Antibody Test Kit for Novel Coronavirus!

The State Drug Administration approved 21 kits for novel coronavirus antigen testing, of which the types of antigen objects tested are classified as IgG, IgM, or both. The mainstream detection methods are the colloidal gold method (7) and the magnetic particle chemiluminescence method (7). Among them, I would like to introduce you to the novel coronavirus (SARS-COV-2) lgG/IgM antigen test kit (colloidal gold method)!

There are various kinds of electronic blood pressure monitors on the market, so which blood pressure monitor is more scientific to choose? Electronic blood pressure monitor can be more convenient, easy to operate, and can well reduce environmental pollution, is highly recommended to use a blood pressure monitor, specifically it has the following advantages.

Electric wheelchairs have become popular in recent years. Although alloy electric wheelchairs are more expensive than manual wheelchairs in terms of price, the cheap ones are three or four thousand, and the expensive ones are tens of thousands, but many people still buy them. When choosing a wheelch