Disinfecting vs. cleaning
Social distancing and sheltering in place are important tools to help flatten the curve and reduce the spread of COVID-19. Disinfecting and cleaning anything that enters your home from the outside world – including yourself – is also paramount.
Scientists and the medical community are still discovering the various ways in which COVID-19 can be transmitted, but they all seem to agree that proper hygiene is an important step in the fight. What does that mean when it comes to cleaning the items you bring into your home?
“One of the challenges we have is that there is a lot of baseline information about the particular virus that causes COVID-19, SARS CoV-2, but very little basic research has been performed to determine how long it can survive on surfaces,” says Dr Meghan A. May, a professor of microbiology and infectious diseases at the University of New England College of Osteopathic Medicine. “The good news is that SARS CoV-2 is highly susceptible to many disinfectants, including alcohol-based sprays or gels, ammonium compounds, detergents, bleach-based cleaners and heat.”
The Centers for Disease Control and Prevention (CDC) reports, “cleaning of visibly dirty surfaces followed by disinfection is a best practice measure for prevention of COVID-19 and other viral respiratory illnesses in households and community settings.” So, what’s the difference? Cleaning refers to the removal of germs, dirt and other impurities from surfaces – this does not kill germs, but rather it helps reduce numbers and the risk of spreading infection. Since many cleaners and disinfectants are harsh on the skin, it’s wise to wear disposable gloves when cleaning with both items. Be sure to discard the gloves after each use and immediately wash your hands.
“When reaching for an antimicrobial cleaning product, it’s important to consider that optimal effectiveness of disinfectants – typically a 99.9 per cent reduction in particular pathogens – will only be achieved when used according to the label instructions,” warns Samara Geller, senior research and database analyst for the Environmental Working Group (EWG). “Too often, one or more key disinfection factors are overlooked by the user.” These are the four household products that kill coronavirus, according to Consumer Reports.
Here’s everything you need to think about the moment you arrive back home from an outing.
Wash your hands. Soap and water should always be your first choice. If not available, choose an alcohol-based sanitiser with at least 60 per cent isopropyl alcohol. Scrub thoroughly for at least 20 seconds, washing the front and back of your hands and fingers, between your fingers, and the fingernails (including underneath long nails). “You do not need to use antibacterial soap, nor do you have to use hot water,” says Dr Elizabeth Mullans, a dermatologist. “Do not touch your eyes, nose, or mouth until you have clean hands.” You will need to wash your hands again when you’re done unloading groceries or handling anything else you brought in from outside.
Try not to put your phone anywhere but your pocket or handbag and especially not on grocery conveyor belts, shelves, carts and payment counters. The less exposure to public surfaces, the better. When you return home, Dr Mullans says to use disinfecting wipes (such as Clorox, or alcohol-based wipes containing at least 70 per cent isopropyl alcohol). “Make sure to wipe down the entire phone, including the screen,” she says. “Disinfect your phone at least once a day, even if you’re staying home, but more frequently if out and about.”
Wallet or handbag
Before the COVID-19 pandemic, the average handbag was one of 15 everyday items dirtier than a toilet seat (specifically, three times dirtier than an office toilet seat). As with your phone, try to keep your handbag or wallet on your person instead of throwing it in the shopping trolley. Once back home, you’ll need to refer to the manufacturer’s instructions on how to clean your wallet or handbag as it depends largely on the material.
Dr Mullans suggests washing your grocery bags in a washing machine or at least wiping them with disinfectant after each use. Also, whatever surface you put your grocery bags down on at home (hard non-porous surfaces like countertops, the floor, or table are easier to clean than rugs or carpet) should be disinfected thoroughly after they are clear. Dr May says the virus can remain on paper bags for about 24 hours, so get these out of the house as soon as possible.
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OK, the bags are out of the way, but what about everything you brought home that once lived on a store shelf? Disinfect everything you can within reason – but simply rinse your produce; do not use bleach, soap or other disinfectants. In a recent segment, Dr Sanjay Gupta, CNN’s chief medical correspondent, suggested setting up a “dirty” and “clean” area on your kitchen countertop when unloading cans, boxed goods and other packaged products – place everything in the dirty area, and as you clean the surface of each item with a disinfecting wipe, place it in the clean area. Avoid touching your face during this process, and then disinfect everything in the dirty area when you’re done. Finally, yep, you guessed it, wash your hands.
Now, it’s time to head back out to your car and start retracing your steps a bit. The virus can live on a plastic steering wheel for about 75 hours and a car door for roughly 40 hours, Dr May says. Aside from those items, when you left the store, you likely also touched your keys, seat belt, seat, gear shift, sun visor, touchscreen, boot latch, garage door opener and cup holders. Use disinfectant wipes on everything except leather and touchscreens.
Spectacles and sunglasses
Dr May says that the virus can survive approximately 75 hours on your eyeglasses or sunglasses. She suggests washing with soap and hot water upon returning home for the best disinfecting power, but you can also use an alcohol-based wipe on everything except the lenses for extra protection.
Check out these everyday habits that can save your eyesight.
On the way into the house from the car, how many things did you touch before washing your hands? Reflect on everything possible – such as the garage door opener, door handle, a light switch, an alarm system panel, a pet or child gate – and then start disinfecting each surface with sprays or wipes. Oh, and go wash your hands again.
Now, turn your attention toward yourself. Your clothes should go right into the washing machine (not just sitting around festering in a laundry hamper). “It is best to wash clothes in the washing machine on the warmest setting recommended by the manufacturer, and dry them on warmest setting recommended in the dryer,” says Dr Mullans. “Regardless of the temperature, in addition to laundry detergent, I recommend adding bleach for white fabrics, towels and sheets.” Whatever you do, don’t mix bleach and white vinegar. The CDC warns that shaking dirty laundry may disperse the virus through the air, so avoid too much movement. Wash your hands after handling dirty laundry.
Just as with your handbag and wallet, shoes may be incredibly difficult to disinfect. If you happen to own a pair of machine-washable shoes, choose those for your outings and toss them in with your clothes after you return home. Otherwise, it may be a good idea to turn your house into a no-shoe zone for the time being – even before coronavirus came on the scene, it makes good hygienic sense to take off your shoes the minute you enter the house. Once it becomes a habit, you’ll never go back to your old ways.
It’s important to keep your jewellery cleaner than ever, especially rings and bracelets. If it’s only getting cleaned during your normal hand-washing process, it may not be enough – germs can hide in crevices and between your skin and the metal. “Clean jewellery and gemstones according to instructions from the manufacturer,” says Dr Mullans, who tries not to wear jewellery during the pandemic. Hard gemstones, such as diamonds, rubies, and sapphires can usually be cleaned with isopropyl alcohol, but double check with your jeweller first.
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