After using the skin care products, take out the isolation spray, spray the isolation spray a few times at a certain distance from the face, and be careful that the dosage is not too much, otherwise it will be difficult for the skin to absorb, and it will also affect the makeup products used later. After using the isolation spray, it will not only have the isolation effect, but also make the skin look more moist and clear.

　　?

　　There are many types of isolation sprays on the market. When choosing, you must choose according to your own skin, otherwise you will not feel good if you choose the one that is not suitable for you. Spitter refers to a pot for watering flowers and watering utensils, which are pot-shaped. The water spraying part is like a lotus, with many small holes. Some places are also called spray barrels. The principle of watering can is that there is a pressure difference between the high and low water levels, and the high pressure in the pot makes the water spray out. It also uses the principle of pressure, and the smaller the area, the greater the pressure and the farther it sprays, so the nozzles of watering can are composed of many eyes with small areas, and it also uses the principle of pressure balance. There are always several air holes at the top of the watering can, in order to let air in and achieve the balance of internal and external atmospheric pressure. Without air holes, water can't be poured out.

　　2

　　/3

　　The use steps are as follows:

　　1. First, pump air into the pot. The air above the liquid level in the pot increases, and the pressure increases, which is greater than the external atmospheric pressure, and the liquid in the pot will be pressed into the tube.

　　three

　　/3

　　2. Secondly, press the watering can, and after spraying the liquid medicine, the smell of the liquid medicine can be smelled in the distance, which is the result of the non-stop movement of molecules and belongs to the diffusion phenomenon.

　　3. In addition, if it is used at home or in an office with an area of less than 200 square meters, we will generally use a watering can with a capacity of less than 1000ml, which is relatively simple and convenient to use.