It’s surprising that after a year, people still haven’t figured out that reusable elastomer respirators with long life replaceable filter cartridges and >99% small particle filtration effectiveness are the best option from the perspectives of safety, overall cost and sustainability. I’ve been using the same pre pandemic 3M P100 industrial respirator with a retrofitted exhalation valve filter for months. It fits with…
The 3M 100 (your example) is a big, bulky heavy mask that costs (according to Amazon currently) $33, and as you say, isn’t actually fit for Covid protection (in both directions) without modification. And you wonder why, after a year, “people” haven’t widely adopted them? Honestly, this is such a prime HN comment I’m not sure you’re not trolling.
Estimated 1.56B face masks will have entered oceans in 2020
151–160 of 177 posts
Re: Estimated 1.56B face masks will have entered oceans in 2020
#152Earlier quoted context omitted.
Because the virus particles travel on other things, and those other things are big enough to get blocked.
No its because of Brownian Diffusion. Counter intuitively masks block particles smaller than 0.3 microns (such as virus’s) more easily than particles at around 0.3 microns in size. It is particles that are around 0.3 microns in size that filters have the most difficulty blocking. N95 particles block 95% of particles of 0.3 microns in size. N99 Masks block 99% of particles at 0.3 microns. As I understand it smaller pa…
Re: Estimated 1.56B face masks will have entered oceans in 2020
#153Re: Estimated 1.56B face masks will have entered oceans in 2020
#154On the note of disposing properly: To protect wildlife, it's been recommended by wildlife nonprofits to snip the straps of your face masks before disposing, to minimize the potential for it to harm an animal. [1] https://www.heart.co.uk/lifestyle/rspca-warn-face-masks-wild...
If I place an item into a trash bin, what is the likelihood that it comes into contact with wildlife?
Re: Estimated 1.56B face masks will have entered oceans in 2020
#155It’s surprising that after a year, people still haven’t figured out that reusable elastomer respirators with long life replaceable filter cartridges and >99% small particle filtration effectiveness are the best option from the perspectives of safety, overall cost and sustainability. I’ve been using the same pre pandemic 3M P100 industrial respirator with a retrofitted exhalation valve filter for months. It fits with…
Masks with exhalation valves (edit: and no filter :) are inconsiderate to others since they do not stop you from spreading virus particles. https://www.nist.gov/news-events/news/2020/11/new-airflow-vi...
Re: Estimated 1.56B face masks will have entered oceans in 2020
#156Earlier quoted context omitted.
Masks with exhalation valves (edit: and no filter :) are inconsiderate to others since they do not stop you from spreading virus particles. https://www.nist.gov/news-events/news/2020/11/new-airflow-vi...
You can't spread what you haven't caught.
Re: Estimated 1.56B face masks will have entered oceans in 2020
#157It’s surprising that after a year, people still haven’t figured out that reusable elastomer respirators with long life replaceable filter cartridges and >99% small particle filtration effectiveness are the best option from the perspectives of safety, overall cost and sustainability. I’ve been using the same pre pandemic 3M P100 industrial respirator with a retrofitted exhalation valve filter for months. It fits with…
The 3M 100 (your example) is a big, bulky heavy mask that costs (according to Amazon currently) $33, and as you say, isn’t actually fit for Covid protection (in both directions) without modification. And you wonder why, after a year, “people” haven’t widely adopted them? Honestly, this is such a prime HN comment I’m not sure you’re not trolling.
Even as a one off, a single respirator costs less than three or four good quality cloth masks, and less than a months supply of single use designed N95s or surgical masks.
Few who have ever ever worn an elastomer respirator would argue it’s less comfortable than an N95 or less efficacious than a 1918 flu era cloth mask.
The exhalation valve filter adaptation could be cut and fitted with the craft skills of a five year old and took two minutes.
I’m not trolling but I think you may be.
Re: Estimated 1.56B face masks will have entered oceans in 2020
#158Earlier quoted context omitted.
How did you retrofit the exhalation filter? I have a similar 3M mask (6000 series) but haven't used it since March since the exhale port doesn't make it easy to attach a filter. Being able to use it would solve my glasses fogging, which I've only been able to mitigate somewhat with shaped 3D printed pieces of plastic in the nose-wire slot of my fabric mask.
Cut up surgical mask and duct tape it around the exterior vent.
Re: Estimated 1.56B face masks will have entered oceans in 2020
#159It’s surprising that after a year, people still haven’t figured out that reusable elastomer respirators with long life replaceable filter cartridges and >99% small particle filtration effectiveness are the best option from the perspectives of safety, overall cost and sustainability. I’ve been using the same pre pandemic 3M P100 industrial respirator with a retrofitted exhalation valve filter for months. It fits with…
Wondering what an equivalent option would be in Europe. P100 seems to be not available outside the US.
Source: https://multimedia.3m.com/mws/media/433598O/european-standar...
Re: Estimated 1.56B face masks will have entered oceans in 2020
#160Some paths I've heard of include: ships dumping waste directly into the ocean; landfills that are improperly sealed; waste blown and/or spilled out of out of open containers, trucks, and barges; waste blown or washed (from where?) into storm drains and rivers; etc.. Moreover, most of the great pacific garbage patch apparently consists of fishing nets.
It seems like tracking the waste flow and disrupting some of those paths might be a good idea.