How many seconds should alcohol be disinfected with alcohol to ensure safety?

The World Health Organization recommends the most effective and simple way to prevent covid-19 is to wash your hands clean. Therefore, everyone should disinfect their hands with alcohol with products of clear origin and be tested before going to the market.

1. What is antiseptic?

Antiseptic is the process of destroying or removing all forms of living microorganisms including bacterial spores.

2. When to use hand sanitizer with alcohol?

Water-free handwashing with an alcohol-containing solution should only be applied when handwashing conditions are not available with water and soap, but only if the stain is not clearly visible. If your hands have visible stains, wash your hands often (use regular soap (water or cake) to wash your hands).

3. What kind of alcohol gives the best bactericidal effect?

70 degree alcohol

70-degree alcohol has a slower evaporation rate, just enough time to kill bacteria

70 degree alcohol gives a better bactericidal effect than 90-degree alcohol. Because the 90-degree alcohol just applied to the hand has evaporated very quickly, not enough time exists on the hands to kill bacteria. And alcohols below 60 degrees are not guaranteed to be antiseptic. 70-degree alcohol is alcohol with a slower evaporation rate, just enough time to kill bacteria. In summary, do not use alcohol at high concentrations of 90% because of rapid evaporation, which does not guarantee contact time and safety.

The U.S. Centers for Disease Control and Prevention (CDC) has also advised people to protect themselves by washing their hands with soap and clean water, which is the first option as it helps reduce all germs. Only in the case of soap and water, use a quick hand sanitizer with a minimum alcohol content of 60%.

4. How many seconds is it guaranteed to disinfect your hands with alcohol?

When using alcohol-based antiseptic solution or using alcohol for quick handwashing, you need to do it for at least 30 seconds, rubbing and ensuring all positions on the skin of the hands are exposed to disinfectants and let dry naturally. The virus will become inactived after about 3-4 minutes of use of this solution. Therefore, attention should be paid within 3-4 minutes after performing a quick handwashing, the virus on the hand has not been completely destroyed, so it can still be transmitted to others.

However, the duration of contact and the amount of disinfectants also determine greatly the bactericidal ability. Therefore, proper compliance with the instructions for use of each type of solution is really necessary. For example, the same main component is Ethanol (alcohol) but different products will have different uses. Commonly used products in hospitals such as Aniosgel 85 NPC can kill virus strains such as Herpes Virus, Rotavirus, Coronavirus within 30 seconds (under standard conditions) with a manual of 3ml/30 sec, with asirub in the form of a solution instructed to use 3-4 ml for 1 minute, Alphasept handrub should take 3ml with a minimum hand contact time of 30 seconds… At the same time, in order to calculate the dosage, the manufacturer needs to design dosing pumps for each product accordingly, each pump will pump out a sufficient amount for a handwashing.

5. The main component of a quick antiseptic hand sanitizer

Use dry hand sanitizer

Use dry hand sanitizer with lotion to moisturize the skin
  • Antiseptic hand sanitizer: contains 2-4% chlorhexidine or 5-7% povidone iodine or 1% triclosan… used in handwashing surgery. The antiseptic solution being used at the hospital is Microshield 2% and 4% (used in operating rooms).
  • Non-water disinfectant solution may contain one of the following chemicals: Alcohol (alcohol), Chlorhexidine, Chlorine, Hexachlorophene, Iodine, Para Chloro Meta Xylenol, 4th level ammonium compound, and Triclosan, usually accompanied by skincare.
  • In fact, the main ingredients of medical hand sanitizers in general and dry hand sanitizers in particular today often include: Ethanol solution (alcohol), pure water, sodium lactate (a kind of deodorant), fragrance (fragrance or aromatic essential oils), benzalkonium chloride (bactericidal substance) … According to doctors, fast hand sanitizer or dry hand sanitizer is capable of quickly killing bacteria, viruses, pathogens harmful to health, making them unable to grow and protect their hands clean. Some types of hand sanitizer, hand sanitizer with alcohol can also contain some nutrients, vitamins to help hands soften.

6. Handwashing techniques with alcohol-containing solution

  • Step 1: Take 3-5 ml of hand sanitizer into the palm.
  • Step 2: Rub your hands hard for 1 minute, rub your palms against each other and rub one palm on the back of the other and vice versa.
  • Step 3: Rub your palms together, squeeze your fingers into the interstitial fingers. Rub the back of one finger on the palm of the other and continue to do the opposite (the back of the hand to fit the palm).
  • Step 4: Rub the thumb of one hand into the palm of the other and vice versa (the palm embraces the thumb). Rub one fingertip into the palm of the other and vice versa.

Note: When completing step 4 and the hands are not dry, proceed again from steps 2 to 4 until the hands dry.

On the other hand, the Ministry of Health recommends that people do not choose fast hand sanitizer products of unknown origin and are not tested before being put on the market because they do not guarantee safety and bactericidal ability.

SEE MORE:

  • Note when using wound disinfectant solution
  • FDA guides safe use of hand sanitizer
  • How long does hand and mouth disease in a child last?

About: John Smith

b1ffdb54307529964874ff53a5c5de33?s=90&r=gI am the author of Share99.net. I had been working in Vinmec International General Hospital for over 10 years. I dedicate my passion on every post in this site.

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