I’m usually skeptic of simplified news reporting, especially in the presumed context of (rightly) trying to convince the general public that masks aren’t really an impediment to daily routine activities. Regardless, what exertion level did they measure the various oxygen levels at? If one is just riding along, unracer-like, enjoying the scenery, and smelling the flowers, I can believe that. However, if one is trying for a PR up Hamilton or Monte Bello, I’ll need to see the data and experimental setup to be convinced. Actually, I should just borrow my wife’s pulse oximeter and figure out the effects, if any, of masking , at various exertion levels, especially since I’m going exactly nowhere this Thanksgiving.
On Monday, November 23, 2020 at 8:10:10 PM UTC-8 Robert Tilley wrote: > I just saw a news report that had a study showing that masks don’t have > any effect on your oxygen levels. That say they feel like they do but the > numbers show you are still getting the same oxygen moving around your body > as you would without a mask. > > I have a hard time wearing a mask while riding so I wear one pulled down > and “deploy” it when the need arises. My mask of choice is the Wald mask > since they fit ok and have some nice bikey patterns. > > Robert Tilley > San Diego, CA > > Sent from my iPhone > > On Nov 23, 2020, at 7:52 PM, Benz Ouyang, Sunnyvale, CA < > benzo...@gmail.com> wrote: > > The thing with masks is that if they're not a bit constrictive, they > probably don't work (except for face shields, but who wants to look like a > welder with a transparent shield?). That's the nature of filters. Having > said that, there's constrictive, and there's *constrictive*. I should say > that none are constrictive to the extent claimed by anti-maskers. > > > I find the least constrictive is one that has the largest surface area and > that also does the job. Duh! But *how* do you know if it does the job? > Given that masks are at least half a prophylactic against transmission to > *others*, an easy way of determining efficacy, without specialized tools, > is to try blowing out candles that are within a few inches of your face, > with the mask on. If you can blow out said candle, the mask isn't effective > enough. Stay away from the N95 masks with one-way valves; sure, they're > nice for you, but they do not mitigate the dispersion of droplets to others > as you exhale. > > Anyway, I find buffs, wool ones, double-layer-up, and merely lightly snug > around the mouth+nose instead of tight, to be efficacious and least > constrictive. In fact, I use that when cycling in cold weather. With the > proper eyewear, I don't experience fogging issues when on the move. In > addition, you may also want to look into anti-fog treatments, especially as > eyewear will fog up even without masks when one suddenly stops, in between > exertions. > > On Monday, November 23, 2020 at 2:10:42 PM UTC-8 Patrick Moore wrote: > >> Can anyone suggest one, preferably one that is easy on/off, or at least >> easy to slip down when solitary and up when in public? I've been using >> basic cloth masks and (1) they're suffocating under any exertion, (2) they >> fog my shades, (3) the ear loops detach easily from your ears, so slipping >> them down often pulls them off. >> >> I am quite prepared to learn that the entire official protocol for >> infection avoidance is bunkum, and I am heartily disposed to believe that >> my political leaders are both inept and corrupt, or at least driven >> principally by self interest, but the situation is serious enough that I am >> willing to give them the benefit of the doubt and wear masks around others, >> especially since some others seem panicky if you don't. >> >> Thanks. >> >> -- >> >> ----------------------------------------------------------------------- >> Patrick Moore >> Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum >> >> -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rbw-owners-bun...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rbw-owners-bunch/663e4ad3-0314-40e1-bd7b-b5e04d0654aan%40googlegroups.com > > <https://groups.google.com/d/msgid/rbw-owners-bunch/663e4ad3-0314-40e1-bd7b-b5e04d0654aan%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/85cb93ea-7b1e-4d33-97da-d3e1e820154fn%40googlegroups.com.
