How to Effectively Disinfect Public Surfaces
Ensuring the cleanliness of public surfaces is crucial in preventing the spread of germs and viruses. This guide will provide you with the best practices and methods to disinfect various public surfaces, including using the right cleaners, proper application techniques, and important safety measures to follow.
Choosing the Right Disinfectants
To effectively kill germs on public surfaces, it's essential to choose the right cleaning products. Here are some effective methods:
1. Alcohol-Based Solutions
Isopropyl alcohol at a 70% concentration is highly effective in killing most germs, including the COVID-19 virus. You can find it at pharmacies or supermarkets. Apply the undiluted alcohol to the surface, let it sit for 30 seconds, and then wipe it away with a paper towel. Consider using a small spray bottle to carry it with you.
2. Bleach Solution
Bleach is a stronger cleaner, especially useful in hospitals and commercial settings. Dilute a mixture of 1 part bleach and 99 parts water, and load it into a small spray bottle. For contaminated surfaces, such as those with blood or feces, use a 1:49 parts bleach solution. Always follow safety precautions, such as not mixing bleach with other chemicals, as this can create toxic fumes. Apply the solution, let it sit for 10 minutes, and then wipe it off. Homemade bleach solutions can lose potency after 24 hours, so discard any remaining solution.
3. Hydrogen Peroxide
Peroxide is another effective disinfectant. It is widely available and can be applied to surfaces undiluted. Let it sit for 30-60 seconds before wiping it off with a paper towel. However, be aware that peroxide can discolor some fabrics, so it's best to use it on hard surfaces like plastic, metal, tile, or wood.
4. Commercial Disinfectants
There are many commercially available cleaning products like Lysol and Clorox that are EPA-approved disinfectants. These products often smell less harsh and are less likely to damage surfaces. Look for products that contain alcohol, peroxide, or chlorine for maximum effectiveness. Always follow the application instructions on these products.
Disinfecting Techniques
When applying any of these solutions, adhere to the following steps:
1. Application and Sitting Time
Apply the disinfectant to the surface and let it sit for the amount of time recommended by the product instructions. For example, bleach solution should sit for 10 minutes, while alcohol and peroxide should sit for 30 to 60 seconds. Commercial cleaners may require a shorter or longer sitting time. Be cautious and courteous when using spray disinfectants to avoid drips or accidental spraying of others.
2. Proper Disinfection Techniques
After the solution has sat for the recommended time, wipe it off in a circular motion using a clean paper towel. For disinfectant wipes, allow the fluid to evaporate on its own, then dry the surface with a clean paper towel if it is still too wet.
3. Personal Protection and Safety
If you are cleaning a large or contaminated surface, wear disposable rubber gloves. Cleaners and disinfectants can irritate the skin, so remove gloves carefully without touching your skin. Follow CDC guidelines for proper glove removal to avoid spreading germs.
Disinfecting Specific Surfaces
Target high-touch surfaces, especially in public spaces:
1. High-Touch Surfaces in Public Places
Disinfect frequently touched surfaces such as shopping carts, faucet handles, elevator buttons, railings, and water fountains. These surfaces are often handled by many people, increasing the risk of contamination. Sanitize these items before use or after handling them.
2. Doors and Light Switches
Doorknobs and light switches are also high-touch surfaces that should be cleaned regularly. In an office setting, it's a good practice to wipe down these surfaces every day to maintain cleanliness.
3. Public Transit Surfaces
Wipe down any handles or bars on public transit to prevent spreading germs. Use a paper towel to apply the disinfectant instead of spraying directly onto the touch screens, as this can cause damage. Always be courteous and work quickly to avoid causing any inconvenience to others.
4. Touch Screens and Electronics
Disinfect touch screens on ATMs, credit card machines, and self-checkout machines before using them. Apply a 70% alcohol solution to a paper towel or use disinfectant wipes to clean the screen. Ensure the screen is completely dry before use to avoid damage. If you don't have access to disinfectant, clean your hands with soap or hand sanitizer after using the touch screen.
5. Office and Home Surfaces
Clean your keyboard and mouse at home and in the office to protect yourself and others from germs. Apply a light amount of cleaner to a paper towel or use a disinfecting wipe to avoid soaking the electronics.
Additionally, sanitize any items you share with others, such as phones, pens, and remote controls. Children should not use disinfectant products, so for their items, use soap and water instead. It's best to avoid sharing items altogether until the COVID-19 outbreak is over, but if sharing is unavoidable, always disinfect them afterward.
While public surfaces are important to clean, don't forget to wash your hands frequently. Disinfecting surfaces is an important step, but washing hands thoroughly with soap and water for at least 20 seconds remains the most effective way to prevent the spread of germs and viruses.