What does spfm mean in Chinese, what does spf mean

** Instead of "SP" on the radio display, it should be "5P", which is the 5th song or opera. On the side of the radio, there should be an "M" button, which is the mode switch button. Press this button and adjust it to FM i.e. FM mode and you're good to go.

That is, a similar digital form on the LCD screen of the radio will do.

SPF refers to the sun protection factor, which is a performance indicator of sunscreen to avoid sun exposure and protection, indicating the level of sun protection effect. In daily sunscreen cosmetics, the higher the corresponding value after SPF, the stronger its sunscreen ability.

SPF, or Sun Protection Factor, is a measure of how well a sunscreen resists UVB rays.

Sun Protection Factor, abbreviated as SPF, refers to the ratio of the energy required to produce the minimum erythema on the ** coated with sunscreen protection and the energy required to produce the same degree of erythema on the ** without any protection.

The SPF value applies to everyone and is calculated assuming that the intensity of UV rays does not change over time, and a person without any sun protection will turn red after 20 minutes in the sun, and when he uses SPF 15 sunscreen, it means that he can be 15 times longer, that is, after 300 minutes** he will be reddened. SPF is a measure of a sunscreen's ability to defend against ultraviolet rays in the sun.

Sunscreen products can effectively resist the damage of ultraviolet UVA and UVB. To find out how long sunscreen protects you, you should first know how long you need to stay in the sun without using sunscreen at all** before it turns slightly red; The time required is then multiplied by the SPF value to give the protection time of the sunscreen, which is the SPF value indicated on the sunscreen.

For example, if you don't wear sunscreen and your ** will turn a little reddish after 20 minutes in the sun, a SPF 15 product will protect you for up to 5 hours.

20 (minutes) x 15 (SPF) = 300 minutes (5 hours)

SPF values apply to everyone, and when using a sunscreen with SPF 4, you can theoretically stay in the sun for 4 times longer (80 minutes) before it appears reddish; If you choose a sunscreen with an SPF of 8, you can stay in the sun for 8 times longer (i.e. 160 minutes); When he uses SPF15 sunscreen, it means that it can be extended by 15 times, that is, it will not be tanned after 300 minutes**; And so on.

SPF refers to the detection index that measures the ability of sunscreen to defend against ultraviolet rays.

Sun Protection Factor (SPF) refers to the SPF sun protection factor, which indicates the level of sun protection effectiveness that sunscreen products can exert, and it is determined according to the lowest dose of erythema. The coefficient after the SPF value refers to a time frame in which UV exposure to ** is not harmful. The sunscreen effect of sunscreen cosmetics refers to the ability to protect against ultraviolet rays, which is often expressed by the SPF value level of the sun protection index on the label of cosmetics.

Sunscreen products can effectively resist the damage of ultraviolet UVA and UVB, in the case of not using sunscreen at all, how long to stay in the sun, **will become slightly reddish, and then multiply the time required with the SPF value to get the protection time of the sunscreen, that is, the SPF value marked on the sunscreen is the protection index it provides.

SPF Misunderstanding:

The sun protection factor is only a reference number, in fact, it must also be considered according to the individual's skin type, sun reaction, color, activity and sweat status. The choice of sunscreen needs to be individualized, and family members should choose sunscreen according to their own needs.

The effect of sunscreen products to block ultraviolet rays lies in the sunscreen ingredients and content contained, and there is no absolute relationship with the level of the sunscreen. **High sunscreen may not be suitable for everyone, and should be chosen according to individual skin type, environment and time.

SPF is the abbreviation of Sun Protection Factor, which means: Sun Protection Factor.

SPF15 means: SPF 15 means (generally outdoor sun protection for about 4 hours) for general protection.

Sun Protection Factor (SPF) refers to the SPF sun protection factor, which is a detection index that measures the ability of sunscreen products to defend against ultraviolet rays in the sun, indicating the level of sunscreen efficacy that sunscreen products can play. It is determined based on the lowest erythema dose.

The coefficient after the SPF value refers to the time range of one mu of the ultraviolet irradiation that does not cause harm to the **. The sun protection index of UVA protection is expressed in PA or PPD.

SPF stands for Sun Protection Factor, or sun protection factor.

SPF is the abbreviation of Sun Protection Factor, which indicates the level of sun protection effectiveness that sunscreen products can exert. It is determined according to the lowest dose of erythema, and the following values represent several times longer the time of sunburn, the higher the value, the better the sun protection effect.

The above content refers to what does SPF mean - Koala Skincare.