Came across this deal this morning and purchased one. Seems like it’s the cheapest deal going around for the model - quite a lot cheaper by the looks of it.
This is the bigger model with WiFi, and they’re placed all around the Royal Melbourne Hospital, so they must be pretty decent in terms of performance and effectiveness.
Can confirm these run well and are decently quiet.
These have being placed all around multiple workplaces of mine and have run without an hitch for the last 2-3 years
Bought a Levoit Core 400S yesterday for $399 at JBHIFI.
Very quiet.
Is this the one thats in every hospital?
I have one of these and it's great! They can be loud when they're high but nothing noteworthy when on low. This works so well that we had to turn it down because it sucked "our smell" out of the home according to my wife
These are everywhere at my son's school.
Your son is very lucky. Many schools turn theirs off.
This is the bigger model with WiFi, and they’re placed all around the Royal Melbourne Hospital, so they must be pretty decent in terms of performance and effectiveness.
Purchased by the Victorian Government's Department of Education and Training for use in Victorian government schools.
Call me cynical, I take this to mean that someone in Samsung cut a sweet deal for either the government or knows the right people.
Purifiers are for the most part very similar- just a fan and a HEPA filter, and HEPA is a standard so they are all pretty much identical in terms of filtration effectiveness. The upside of this is that you don't have to worry about Samsung's terrible reputation for support- because they are so simple, there is nothing to go wrong with a purifier.
The only filters I can think of that are significantly different are the IQAir ones, which far exceed the standard.
I thought they used activated carbon filters as well.
Just about all purifiers have an "activated carbon" tickbox… the vast majority of them are IMO a bit shite. It's just a lightweight, low cost layer in addition to the HEPA cartridge. Totally laughable- they are probably about 100g of carbon.
The only purifiers I've seen that do serious amounts of material are (again) IQAir and AustinAir. IQAir does 2kg, I don't remember how heavy AusinAir cartridges are (edit: just looked it up, 6.8kg). Both use chunky granules of activated carbon + potassium permangante/zeolite.
IQAir rates the 2kg of material for 2 years of daily use. Those flimsy cheap-ass sprayed-carbon filters in other brands are going to be saturated within a month or two.
Purely a tickbox that the marketers can put on their product specs.
BTW, IQAir filters are the only ones that are rated well enough to filter out virus particles. HEPA isn't rated to do that in the slightest. So the "used in hospitals" thing with Samsung is a bit… weak.
-airbro
These deliver 706m³/h CADR. Which IQAir purifier delivers over 1m³/$? And the current deal price isn't so great.
Your assessment isn't really accurate - turbulence, airflow (fluid) mechanics and noise are critical with consumer purifiers and this delivers incredibly low noise to CADR.
turbulence, airflow (fluid) mechanics and noise are critical with consumer purifiers
You are correct, there is a bit more to it than just "fan + filter," stuff like noise is important and I have gotten rid of purifiers in the past because they sound bad. But it's more complex than you point out- it's not just raw decibels, it's also frequency profile. And nobody supplies charts that cover this sort of information as it's far too complex for consumer marketing.
I've been through a crapload of purifiers. I've dumped some machines because they skew towards high frequencies (let alone high decibels). I've ditched an AustinAir machine because the metal chassis was prone to harmonic resonance. IQAir machines are not particularly quiet, but they generate more lower frequency noise which is much better at blending into the background- they sound kind of impressive, a low rumble rather than the high pitched hiss found with most other brands. I've not listened to Samsung machines at home- never bothered to own one, and any store that carried them as demos had too much background noise.
These deliver 706m³/h CADR. Which IQAir purifier delivers over 1m³/$? And the current deal price isn't so great.
I ignore CADR figures as they are based on having the machine turned on at full blast. I would only use purifiers on medium to low speeds. I don't think that anyone could ever operate a machine on full at home, so the max figure is meaningless- again, it's just for marketing or useless Choice magazine fluff pieces. It's as meaningful as the top speeds listed on sports cars.
All of my machines were pretty much selected to be "maintains a certain level of AQ in a room over time, with an acceptable level of noise," arrived at over real life testing over days/weeks. Sometimes with external AQI figures north of 150. At no point did I ever bother to remember what the listed CADR figures were, it's not even a figure that I look at on the brochure.
Personally, if I had to buy a load of purifers from scratch (and I don't feel the need for them in Oz) I'd just get Xiaomis. Cheap, effective, good noise profiles, good range of discrete fan speeds. I wouldn't buy a $600 Samsung. Especially because if you want to keep your home air clean, you need multiple units spread throughout.
Yes agree noise profiles are important. In my experience , the Samsungs have a decently low frequency. I have the ax90 and ax32 - both running on high and it's like pink noise. I don't even notice it. Also Samsung publishes cadr and noise levels at different speeds and verified by clean air stars. I purchased a bunch of Xiaomi Pros in 2021. Really nice units when run in but plagued with off gassing and filter availability headaches.
I just checked my router and noticed they are 50 wifi devices in my home 😭
Every thing has wifi these days
$589 at Amazon, also sold by Harris Technology:
https://www.amazon.com.au/gp/offer-listing/B0B5DLD65L/ref=dp_olp_unknown_mbc
Harris Tech has these on there website for $549.00 or damaged box for $499. Cant see if postage is included for those prices.
Also not sure how reliable Harris Tech is these days after Wesfarmers sold them off.
Was close to $430 a few months ago.
The price has gone up on Amazon. This air purifier is usually on sale, personally I'd say only buy it around $500: https://au.camelcamelcamel.com/product/B0B5DLD65L
The filter costs are also not cheap ($140 each, you need two of them) unless you buy non OEM filters.
I got one of these. It is not silent like the Xiaomi, which can be a problem for some people.