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- New Cases of Covid-19 in Us States Track Covid-19 Trends Across The U.S. See If New Cases Are Rising Or Declining as States Reopen
May 8, 2020 · Because low oxygen levels can be a sign of COVID-19, people have been buying pulse oximeters to check their levels at home. But whether everyone needs one of these devices is still unclear.
- 065208055
- kathy.katella-cofrancesco@yale.edu
- Coronavirus Spreads Through The Air
- Monitoring CO2 in Schools
- How Do CO2 Meters Work?
- 'Cheap and Cheerful' Meters Work Fine
- Could Citizens Lead The Way?
- Run Your Own CO2 Experiment
People infected with coronavirus can spread it around a room in tiny airborne droplets called "aerosols" when they breathe out, speak, shout or sing. These aerosols build up indoors, especially when a place is crowded or there is poor ventilation, and the longer you are surrounded by them, the more chance you have of breathing them in. Unfortunatel...
OzSAGE spokesperson Lidia Morawska, an air quality expert based at the Queensland University of Technology, says making sure air in schools is safe needs to be the "highest priority" as kids head back to school. Professor Morawska would like to see an online database where CO2 levels in individual classrooms could be recorded and monitored to find ...
Professor Morawska says the best CO2 meters are those that use technology called Non-Dispersive Infra-Red (NDIR) detectors. These measure the absorption of infrared light by CO2. There are air monitoring experts like Jeffrey Siegel, a professor of civil engineering at the University of Toronto, who says you need to be careful using CO2 monitors. He...
Other indoor air experts support the widespread use of cheap and easily accessible CO2 monitors. Geoff Hanmer, who is on the ventilation workgroup of OzSAGE, argues while some NDIR meters work better than others, most generally do the job that's required. "You don't need a lot of precision here," says Professor Hanmer, who is associated with the Un...
While bureaucracy can often lag behind the latest science, there are some members of the public pushing ahead by collecting and publicising CO2 levels. These include a US software engineer who is developing a "COVID CO2 tracking app", and Australian GP David Berger, who campaigns on clean air and COVID-19 and set up the Twitter-based CO2 Guerrillas...
With the device he uses (and now sells), Dr Berger is able to connect via bluetooth to his phone and get a "trace" of how CO2 levels change over time. "I was at a comedy night [and the meter read] 3,500 after 30 minutes." These "traces" can tell us what interventions make a difference, Dr Berger says. For example, in an experiment involving him and...
- Anna Salleh
Dr. Connolly: If a person has a mild case of COVID-19 and is self-treating at home, an oximeter can be a helpful tool for checking oxygen levels so that low oxygen levels can be caught early.
From Open COVID-19 data sources • Updated daily. United States of America. arrow_drop_down. Last 30 days.
Mar 26, 2024 · These Covid tracking pages are no longer being updated. Get the latest information from the Centers for Disease Control, or find archived data from The Times’s three year reporting effort here.
