Wow.
I can see this has having the similar type of negative public health impact as the Dyson Blade dryers in public toilets, simply circulating fecal matter further in an enclosed space.
Naomi Wu with the critique: https://twitter.com/RealSexyCyborg/status/150912514143903334...
Think of it this way — they don’t dry your hands, they blow the water off. Where does the water go? All over the bathroom. Dyson dryers disperse fluids up to 3 meters away.
https://arstechnica.com/science/2016/04/dyson-dryers-hurl-60...
Your hands -> Windstream
Windstream -> Goes everywhere
It's not even about Dyson dryers, but dryers in general
the average person expels 300-500ml of this fluid a day in the form of a fine mist- an aerosol. You can see it in cold weather.
That's condensation from humidity in the air you breathed out. That's why you can only see it in cold weather. Does it really contain viruses? Any data on this?
[0] To the extent the wearer’s breath is sucked back through the filter, the total emitted pathogen load will be reduced.
This Dyson device does not have source control, and yes, it is a super-spreader device.
There is proof that such devices are super spreading tools: hospital administrators wore a blow up costume in to a Kaiser Hospital ER and caused a huge COVID-19 outbreak.
This was when contact tracing was in effect in California.
See: https://www.nytimes.com/2021/01/03/us/kaiser-san-jose-outbre...
Comments on r/Medicine subreddit: https://old.reddit.com/r/medicine/comments/kpjs8s/inflatable...
It could spread more:
- it reaches more people
- it reaches people faster
It could spread less:
- much more diluted
- will dry droplets faster
- it works as a portable filter which filters part of the volume of air in that space
Visited most cities in India (Delhi, Mumbai, Hyderabad, Bangalore) and the pollution is atrocious. I wanted to return back but had to stay on due to a business trip. I can't imagine why/how anyone would want to live in any of the big cities in India. Love the country though.
There is a strong within our executive team to offshore to Latin American countries.
Please be an early Apr fool's ...
Has it really gotten this bad? If so I hope this is a wake up call, we don't want to live in a Mad Max: fury road reality, right?
[1] https://www.therpf.com/forums/attachments/107e65287a72a2732d...
I think timing product launches to cause such speculation may be a deliberate tactic.
Reminds me of Scorpion and, "get over here" from Mortal Kombat - https://www.deviantart.com/bakerrrr/art/Scorpion-GET-OVER-HE...
I think they are good for anyone doing woodworking, gardening (have pollens), labs where they are chemicals, and similar outdoor work environment.
The problem can be the cost. Dyson are not cheap so and they market that can use is not going to spend that much money.
but the concept is neat. Pushing a boundary
I strongly suspect these don't meet OSHA requirements as a respirator.
https://www.telegraph.co.uk/technology/news/6377644/Dyson-fa...
BTW, if any HNers know of any existing headphones with good noise isolating microphones, please let me know.
Not after their Brexit shenanigans and all that crap over the ventilators.
I can't believe they're still in business: https://gethushme.com/hushme/
https://www.independent.co.uk/life-style/gadgets-and-tech/wi...
Joke's on me. Reality is weird.
By this standard, my unmasked mouth is a super-spreader device. (Of course it is! Most super spreader events occurred without the assistance of any particular technology except perhaps walls and a ceiling. Sometimes technology is involved. For example, COVID pretty clearly spreads through inadequately filtered HVAC systems, but that seems to be just because it moves air to people that otherwise wouldn’t have gotten there.)
> There is proof that such devices are super spreading tools: hospital administrators wore a blow up costume in to a Kaiser Hospital ER and caused a huge COVID-19 outbreak.
What proof? I see no evidence whatsoever that exactly the same superspreader event wouldn’t have occurred with the same infected person without the suit.
As for the inflatable costumes incident there was contact tracing in effect in California when this happened. This was in a Californian hospital and no other incident like this happened before. This was due to the aerosolizing of the costume wearer’s COVID-19 infected breath.
I agree with mtn_nerd, you must be trolling. Considering your choice of words, you're probably well aware of that.
I don't know how much that's changed, but I wouldn't expect the change to be particularly meaningful, sadly.
That's just a bonus, the main issue with them as other comments have noted is that they shove the water off of your hands using their "air blades".
This aerosolises a significant fraction of that water (the rest goes and collects in the puddle you speak of), spreading it all over the room.
More classic driers primarily work by evaporation, and furthermore direct the air stream downwards (to the floor) rather than sideways (across the room).
¹similar to this: https://cdn.trendhunterstatic.com/thumbs/426/foot-door-handl...
I haven’t observed this to be true; I generally find them to be very uncomfortable. Do you have a brand recommendation?
I also have a pretty big beard which makes them less effective.
> Participants washed their gloved hands with a suspension of MS2 bacteriophage and hands were dried with one of the three hand-drying devices. [...] Over a height range of 0·15–1·65 m, the JAD [jet air dryer] dispersed an average of >60 and >1300-fold more plaque-forming units (PFU) compared to the WAD [warm air dryer] and PT [paper towels] (P < 0·0001), respectively.[1]
Okay, but I'm sure just-washed hands aren't all that dirty, right?
> This observational study was conducted to evaluate [...] hand hygiene practices among college students. [...] Overall, 72.9% of students washed their hands, 58.3% practiced hand hygiene (using either soap or hand sanitizer), and 26.1% washed their hands adequately.[2]
I couldn't find any epidemiological studies, but this feels like good enough of a reason to stick to other options considering these things are a solution in search of a problem anyway.
[1]: https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/jam...
Don’t use the air blowers; just let your hands air dry if there’s no paper towels. It doesn’t take very long and has been basically my standard practice for about 10 years now.