How To Use Isopropyl Alcohol Disinfectant (70% vs 91% vs 99%)

Summary

In this informative video, host Aida Yoguely explains the effective use of isopropyl alcohol (IPA) for disinfecting surfaces, emphasizing its ability to eliminate 99.99% of microbes, including COVID-19. She highlights the importance of washing surfaces before applying IPA and clarifies the benefits of using 70% concentration for optimal effectiveness and safety. Aida discusses the science behind how alcohol kills germs, provides safety measures, and outlines proper storage practices to ensure longevity. Viewers are encouraged to engage through comments and join the Yoguely Community Forum for more discussions on effective cleaning practices.

Takeaways

• 🧼 Isopropyl alcohol (IPA) is an effective disinfectant that can eliminate 99.99% of microbes, including COVID-19.
• 💧 IPA is available in various concentrations, typically between 70% and 99%, with 70% being optimal for disinfecting surfaces.
• 🧽 Before applying IPA, it’s essential to clean surfaces with soap and water to remove dirt and grease, enhancing disinfectant effectiveness.
• 🔬 Isopropyl alcohol works by denaturing proteins in germs, similar to how soap operates, making it effective against bacteria and viruses.
• 🦠 Coronaviruses, which have a lipid bilayer, can be effectively inactivated by isopropyl alcohol, especially at concentrations of 70% or higher.
• ⏱️ For effective disinfection, allow 70% isopropyl alcohol to sit on surfaces for at least 5 minutes.
• ⚠️ Alcohol evaporates quickly, which can make it challenging to maintain the necessary contact time for disinfection.
• 🔥 Safety measures are crucial when handling isopropyl alcohol, as it is highly flammable and can irritate skin and eyes.
• 🧯 Store isopropyl alcohol in a cool, well-ventilated area, away from heat sources, and in fire-resistant containers.
• 📅 The shelf life of 70% isopropyl alcohol is around 3 years, but it can be used beyond this period if stored properly.

Q & A

What is isopropyl alcohol (IPA), and what is it commonly used for?

Isopropyl alcohol, also known as 2-propanol, is a staple cleaning agent used for disinfecting surfaces and is the active ingredient in many household cleaners.

What is the optimal concentration of isopropyl alcohol for disinfecting surfaces?

The optimal concentration for disinfecting surfaces is 70% isopropyl alcohol, as it is effective against a wide range of microbes while being safer to use and store.

How does isopropyl alcohol effectively kill germs?

Isopropyl alcohol kills germs by denaturing their proteins, which inactivates their cellular activity or kills them completely.

Can 70% isopropyl alcohol kill COVID-19?

Yes, 70% isopropyl alcohol is effective against coronaviruses, including COVID-19, as it can inactivate the virus's lipid bilayer.

What should you do before applying isopropyl alcohol to a surface?

Before applying isopropyl alcohol, it is recommended to clean the surface with soap and water to remove dirt and grease, which helps reduce the number of microbes.

How long should 70% isopropyl alcohol be left on a surface to effectively disinfect it?

The EPA recommends allowing 70% isopropyl alcohol to remain visibly wet on the surface for at least 5 minutes for effective disinfection against COVID-19.

What safety measures should be taken when using isopropyl alcohol?

Safety measures include wearing protective clothing and gloves, using chemical safety goggles, ensuring proper ventilation, and keeping sources of ignition away.

What is the shelf life of 70% isopropyl alcohol?

The shelf life of 70% isopropyl alcohol is typically about 3 years from the purchase date, but it may remain usable if stored properly and the cap is sealed after each use.

What are the dangers of using expired isopropyl alcohol?

Expired isopropyl alcohol may lose effectiveness and could form unstable peroxides when exposed to air, which can potentially lead to dangerous reactions or explosions.

How should isopropyl alcohol be stored for long-term use?

Isopropyl alcohol should be stored in a fire-resistant cabinet in a cool, well-ventilated area, away from heat sources and strong oxidants, to minimize risks.