I was vaccinated. When Is It Safe To Remove My Mask?
Outdoor concerts, for example, often have people tightening up for a lot of time and carrying more risk, according to Popescu. “Ventilation is important and there’s good ventilation outside, but that’s only possible if you’re carrying hundreds of people for hours, screaming and shouting,” he said.
But I’m Healthy and a Ranger
In addition to the instructions above, there are two main factors to consider in deciding whether to wear a mask: protecting yourself and protecting others. Unless you’re away from all the people and have a negative Covid test that morning, you have to think that there’s always a time when you’re infected, and because of that you can infect others.
If you are with people who are at risk of infection or serious illness – such as people who have no compromised resistance, no young children, the elderly, or someone with a risky condition – it is safest to wear a mask to protect them from you. In places like grocery stores and pharmacies, where almost everyone has to go even if they are in a risk group, the cautious thing to do is always wear a mask, regardless of local transfer rates, because you don’t know if you’re in close proximity to weak people.
In places like restaurants, bars, and home gatherings where you don’t have to wear a mask, your decision is more dependent. risk tolerance level. What is the risk of being exposed to being comfortable instead of not wearing a mask?
“There is a framework of interventions that are essential to prevent you from getting Covid, and then there are significant risk factors for people for adverse outcomes,” he said. Anthony Harris, an epidemiologist at the University of Maryland School of Medicine. “If you combine the two hierarchies of self-assessment of one person’s risk, that’s the way to make decisions. There’s no black or white.”
In addition to the local infection fee, you have several factors to consider:
- How likely are you to get seriously ill if you have a successful infection? If you’re in your 70s or have compromised immunity, you could be worse off with a successful infection even if you don’t die.
- Are others around you vaccinated or not vaccinated? (If you don’t know, consider some that haven’t changed.)
- How close are you to others?
- How long have you been there or how long have you been close to others?
- How big is the place?
- How well is the ventilation of the area?
Mask Quality is also important
Also keep in mind that not all masks are made the same.
“I encourage people to focus on using a quality mask, which is part fit and filtering,” Popscu said. “Ensuring the quality of the masks will be even more important in the interior.”
Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, highlights the months that Americans wear better protection than fabric masks, whose quality and effectiveness vary greatly. In the first half of 2020, public health experts discouraging to many from wearing N95, KN95, and similar respirator masks so that healthcare workers have enough. But now, Osterholm said, healthcare workers and other professions that need respirators are plentiful. There’s no reason that most of the public doesn’t always wear it much more effective masks also. If nothing else, pair a cloth mask with a medical mask.
Ventilation, ventilation, ventilation
Of the factors above, that latter is one of the most important, as Alex Huffman, an atmospheric chemist studying bioaerosols at the University of Denver. The reason that “the outside is safer than the inside of the house” is that the virus particles emitted by others have no chance of growing. They were just floating around and nothing. The interior is a different story.
Aerosols containing the virus that an infected person “will mix with the inside and can grow if there isn’t enough ventilation,” Huffman said. In a stagnant room where aerosols are fixed, it takes less breathing to breathe enough virus to become infected. The amount of content is also important, he said.