The person who uses the kit should be trained and wear mask, gloves and other relevant protective equipment. 

Don't touch the head of the swab with hands or other items when using the swab. 

The product is disposal, don't reuse it.

Don't use the product when its package is broken. 

Don't use the product when it expires.

There are 2 types of solution are available: guanidine salt and non-guanidine salt, among them, non-guanidine salt solution are divided into acidic reagents and alkaline reagents, both can inactivate viruses and can match different brands of nucleic acid extraction and detection reagents.