Expiry date of cotton swab after opening

The validity period of cotton swabs after opening is about 4 hours, but it needs to be decided according to the specific situation.

If a few cotton swabs are taken out after more formal aseptic operation, the rest can still be used normally.

Moreover, as long as the aseptic operation specifications are implemented, the validity period can be extended accordingly, and sometimes it can even reach the validity period of 24 hours.

Dust-free wipes are very different from ordinary cotton swabs. The material of dust-free wiping rod is divided into sponge head and cloth head, both of which are cleaned and packaged in dust-free room. Therefore, the wiping consumables used in advanced dust-free environment must reach 100 level or above, and only wiping cloth and wiping stick can meet the requirements.

How to buy cotton swabs:

1. Most of the cotton swabs sold in the supermarket have not been disinfected and are suitable for general cleaning work such as makeup. If treating wounds, it is best to use sterile cotton swabs, such as those opened in hospitals or purchased in pharmacies.

2. One of the sterile cotton swabs is wrapped in yellow paper. This kind of cotton swab can be sterilized at high temperature and high pressure, and it can be preserved for two weeks without opening. The weather in the south is humid, and the packaging paper is easy to get wet, and the shelf life may be shortened to about one week. The other is sterilized with ethylene oxide gas, packed in plastic bags or sealed in boxes, and the shelf life is about 2 to 3 years.