CHOICE membership

Dyson airblade - futuristic or fail?


#21

I must admit I am often a jeans (more like shorts in Queensland) drier for two reasons, to save paper and it often seems the cleaner option.


#22

Same here, because I seem to be jinxed by having empty paper towel dispensers wherever I go. :stuck_out_tongue_winking_eye:


#23

Instead of using electric hand dryers or paper towels a third option is to simply use an alcohol based hand sanitizer.

I always have a small pocket size bottle with me everywhere I go and its quite handy to be able to quickly clean up your hands after eating or being able to sanitize your hands after touching something you have good reason to believe to be contaminated.

There are times when there is no substitute for scrubbing your hands thoroughly with soap/handwash and plenty of water, but then we need to dry them and hopefully you will have more than one option to use as some public restrooms do provide paper towel dispensers in addition to electric hand dryers.

I agree with the sentiments expressed here about the Dyson airblade hand dryer and I don’t like any other electric hand dryers either.

I believe paper towels are more hygienic but there is the problem of people leaving used paper towels laying around as shown above and waste receptacles are all too often overflowng in public restrooms and some public ones owned by local councils are the worst of all with absolutely apallling levels of filth and complaints to the concerned council seemingly have no effect.

I try to avoid public restrooms like the plague and always make a point of using my home bathroom immediately before venturing out for any prolonged periods of time.


#24

Interesting - I know of a ‘corporate’ where all bathrooms have button soap and automatic taps (proximity/IR- touch nothing) with warm water, and auto (proximity again) paper towells, and some with automatic doors you can trigger with your hip if you don’t mind looking like you are dancing. In the ones that don’t - many people grab the last bit of paper towel and open the door with that, tossing it in the bin as they shimmy through. It’s possible to go from water to ‘clean exit’ without touching anything further with your hands. There are no air dryers/etc. This is in a mission critical location and was introduced during the bird flu scare days - which doesn’t completely make sense, but you get the idea :slight_smile:

I use the towel on the door handle shimmy in public places, though I wonder whether you are better off not washing at all, if you have reasonable personal cleanliness, at least in the ‘number one only’ scenario ?? Number 2 only if you have ‘wipers’ !!

CTA1


#25

Agree, air driers are just a waste of energy and not that clever. They are blowing the remains of any bacteria conveniently suspended with water vapour all over you and the bath room!

The theory is properly washed hands are bacteria free. Not everyone is particular in habit, while others seem to avoid washing at all, ensuring any manual doors are a bacteria crossroads?

The Dyson air blade pics must serve to demonstrate the hazard of the air driers. “Tenugui” might be the better solution for all. Although I associate these with self opening and closing toilet seats with built in personal washing systems. And a pleasant background melody to disguise the audible evidence of bodily function?

Perhaps we need to further automate all public toilets with suitable AI in preference to AI for cars? The totally “hands-free” Uber self driving dunny and the Google self wiping toilet services await our future needs!

A ready universal market, no regulatory hurdles, and much simpler and cheaper to develop than hands-free self driving cars? No need for basins, soap, paper towel or air driers. How environmentally clever!


#26

I tried the hand sanitisers but they leave my hands sticky. So it’s back to soap and water.


#27

I avoid those airblade things but not because they may be dirty. They are so incredibly loud that they hurt my ears and therefore must be contributing to hearing loss. I hate walking past when others are using them for that same reason. I wonder what the official DB level is when people move their hands across the stream of air.


#28

Agree -I have noise sensitivities and I’d like to know what the DB limit is - the hand dryer in public loos at my shopping centre is so loud It it’s mildly traumatising - the acoustics of place add to misery, I think. I can find no DB rating on infernal machine.


#29

If you have a smart phone, you can at least get an idea of the dB level. You’ll probably need to install an app that makes use of the microphone for sound level measurements. It’s not high precision, but does give a reasonably accurate measure in my experience. I use AndroSensor, which also uses all the various other sensors- GPS, tilt, magnetic,optical etc built into smart phones, and can log .csv files for later viewing.


#30

Thank you Gordon, I don’t have a smart phone though. I could ask the Centre Manager to find out (although I’m in ‘run away’ mode by then), but would still have to find out what the limit should be. Appreciate your response.


#31

I have never seen one of these Dyson Airblades, but perhaps another forum member with a smartphone could take some measurements?
I guess the measurements required would be with the phone held at operating distance, and also say 1 or 1.5m away, typical of a walk-past distance.


#32

There is some information from the manufacturers and also measured by other parties:

Dyson Airblade V technical specis indicate that it has a sound power level of 79dB and a sound level of 63 dB @2m. Dyson market this airblade as being 35% quieter that their other model.

Their Airblade dB technical specs don’t have sound levels, but the American Acoustic Society has tested some in the past (2010) including the Airblade dB. They measured 90 dBA with hands in the airstream and 87 dBA with no hands.

Other models had sound levels up to 100 dBA,

This paper also discusses noise levels from airflow hand dryers.

This retailer also has a list of some other drier sound levels. It is worth noting that they nominate 85dB for the Dyson airblade DB which is lower than that recorded by the American Acoustic Society. The difference could be age of the unit and also the reflection of noise in a hard surface bathroom…where a manufacturer’s spec sheets are likely to be in a controlled environment different to a bathroom.

To put these levels into perspective, this is is a sound level shart which provides a indication of the sound levels of common everyday items…

In Queensland, which I expect other states to be the same or very similar, the exposure standard for noise is defined in the WHS Regulation as LAeq,8h of 85 dB(A) or an LC,peak of 140 dB©.

These are also adjusted for higher noise exposure levels as:

The Dyson airblade V would meet these limits for say a toilet cleaner working all day cleaning the same toilet wth the airblade continuously operational, while, the Dyson Airblade DB is unlikely to meet this same requirement. However, it is unlikely that a airblow hand drier would be operational continuously nor the cleaner being present for a whole shift.

For the incidental exposure to airblower noise when visiting a toilet would meet the workplace safe noise level guidelines as most would only be visiting for less than 15 minutes to 2 hours (depending on the airflow hand drier).

Frequency responses of ones ear (ability to hear particular frequencies) an also impact on the nuisance of different sounds. This may also be a contributing factors to ones sensations when using a airflow dryer rather than sound level per say.


#33

I’ve never seen one looking like that, though I do occasionally wonder about what’s blowing up onto me in the air.


#34

I agree. They hurt my ears


#35

I’ve never encountered one that looked as bad as in the picture but still despise the things. They’re noisy as hell, blow little drops of water into my face, and the narrow opening makes it difficult to completely prevent my hands coming into contact with the edges.