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[eBay Plus] Xiaomi Mi Air Purifier 4 $185, Viomi S9 UV Robot Vacuum w/ Auto Empty Station $499 Delivered @ Ninja Buy eBay

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[eBay Plus] Xiaomi Mi Air Purifier 4 $185, Viomi S9 UV Robot Vacuum w/ Auto Empty Station $499 Delivered @ Ninja Buy eBay
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Clear on 26/05/2023 - 11:35 ebay.com.au (1475 clicks)
PWE22

Two deals from Ninja Buy (PC Byte) with a record low price on the Xiaomi Air Purifier 4 which was previously the cheapest at $209 and the Viomi S9 UV with Auto Empty hasn't been this cheap since early 2022.

The Xiaomi Mi Air Purifier 4 offers better purification, more coverage and a more accurate air quality sensors over its predecessors. A comparison of the 3H and 4 can be seen in this image and a comparison between the others in the 4 series in this image.

The Viomi S9 UV Robot Vacuum Cleaner features powerful suction of 2700pa, auto empty and charging station, LiDAR floor mapping with 5 floor maps stored, 5200mAh battery, 3L capacity dust bag, water tank with mop attachment and UV sterilisation.

Original Coupon Deal

Electrical & Electronics Air Purifier Robotic Vacuum Cleaner Xiaomi

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closed Comments

  • Ezekiel2320 on 26/05/2023 - 11:59
    +3

    Correct me if I'm wrong but didn't Xiomi start using DRM in their filters? I recall reading that they silently started rolling out filters with RFID tags and that aftermarket/cheap replacement filters were hard to find or nonexistent. Does this model use filters with DRM?

    • dman1 on 26/05/2023 - 12:19
      +1

      Suspect if the 3H and 3 Pro use RFID tags in their filters the 4 Series will be the same. There are a number of people who bypass the RFID tag using a method that’s been described before and reliably works. I would like to confirm that it does as well as the programmed expiration is far too soon.

      The 4 series filters last twice as long (iirc) but are quite a bit more expensive. Kogan often has good deals but they had reduced their stock only the HEPA model.

      If you REALLY want to look, join Choice Australia on a trial or pay for one article on air filters. The Xiaomi rate quite a way down the list but the price for the better rated Samsung models may set you back double the price.

      Xiaomi is fully support their their Mi Home app but if you are going to start collecting Xiaomi Smart Home Products, would strongly recommend a gateway (I ended buying from AliExpress) as it. Can read Zigbee, Bluetooth and Wifi 2.4GHz. These are based on the Tuya range.

      However we should all consider Matter as the new standard, but it’s taking the manufacturers to catch up. Z-Wave and Zigbee, according to my US friends who buy HA gear at a fraction of what we get and certain brands are cornering the Market.

      Matter can only be a good thing for HA but and the Mi Home app shows a lot more products when you change your location to China Mainland. Why sone of them aren’t here yet, is a very interesting and also annoying question. Anyway I have sim Temp sensors, a 3 Pto and 3H and haven’t been overly impressed with the 3 series HEPA filters drawing in larger particles but the HEPA is genuine but shop around for replacement filters.
      Also that RFID hack.

      • mrjayviper on 26/05/2023 - 12:27
        +1

        care to share a link for the RFID hack? thanks

        • JimmyF on 26/05/2023 - 13:08
          +1

          Turn filter upside down, peel off RFID sticker. Manually reset the filter usage. Done!

        • Ace26 on 26/05/2023 - 13:18

          Or take a piece of aluminum foil (some 12 layers of it) and stick over the RFID sticker and then put it back. Reset filter manually by pressing and holding reset button at the back of purifier

          • JimmyF on 26/05/2023 - 13:25

            @Ace26:

            Or take a piece of aluminum foil (some 12 layers of it) and stick over the RFID sticker

            LOL ok that could work also…. But honestly easier to peel the sticker off than get 12 layers of foil to cover it ;)

      • Sfh1975 on 26/05/2023 - 13:28
        +2

        Choice magazine is free to read if you have a library account, at least here in the ACT. I used to trust them a lot but after reading a few articles (incl on air purifiers) a few days ago, I am not so sure now. Their computer magazine seems a bit better quality-wise.

        • deadpoet on 26/05/2023 - 20:53
          +1

          CHOICE scoring scales tend to be heavily weighted towards one or two factors, so usually the most powerful and expensive machines win top marks. There's also heaps of models which don't get reviewed by them, so I have no idea why people hold them up as some kind of beacon of objectivity, they're far from it.

      • Ezekiel2320 on 26/05/2023 - 13:34
        -1

        Yes personally Tuya/WiFi is a dealbreaker for any "smart" home products, Zigbee or nothing (doesn't necessarily apply in this case as you can just leave it running 24/7). Some other commenters said you can just keep running the filters past "0%" with no problem, hopefully that doesn't change with a firmware "update" (another win for cloud connected devices 🙄)

      • deadpoet on 26/05/2023 - 20:50

        If you REALLY want to look, join Choice Australia on a trial or pay for one article on air filters. The Xiaomi rate quite a way down the list but the price for the better rated Samsung models may set you back double the price.

        This topic comes up every single time a deal on air purifiers is posted. CHOICE rates an air purifier highly if it is larger and more powerful (and thus has a higher CADR). The Xiaomi 3H is on the small/budget side compared to the much bigger and more expensive highly-rated Samsung model.

        If CHOICE chose to review a more powerful Xiaomi machine, it would rate higher.

    • Jugganautx on 26/05/2023 - 12:44
      +2

      doesnt matter even when theyre at 0% it still runs… well my 3H does anyway.

      • redpen on 27/05/2023 - 14:22
        +1

        Yes the time they run out is a joke. I bought a replacement, and when I took the original out it was almost clean as the new one. They work on hours in use, not how actually dirty they are. Just reset the filter timer - from reddit: remove from Mi Home; turn off; hold back button while turning on until it beeps; press the front button once; hold back button until it beeps (mine didn't do this, but still reset the filter); turn off for a few seconds; turn on and re-add to Mi Home.

    • JimmyF on 26/05/2023 - 13:09
      +1

      No DRM as such, they run when the filter is 0%. The RFID is used to track 'usage' for replacement.

      There is a 'hack', just peel the RFID sticker off and manually reset the filter usage.

      Even when not using RFID filters, the machine will track usage and prompt you to replace it. Sure you can reset the usage again, but these filters are dirt cheap. So wouldn't recommend using it more than twice before replacement.

      • Sfh1975 on 26/05/2023 - 13:30

        Dirt cheap as in? Any ball park figure for a reliable compatible or original brand? And where to source them from?

        • JimmyF on 26/05/2023 - 14:11

          They are normally ~$40 each shipped. Cheap enough really. No point in running an air filter if you don't wish to have clean enough filters to do the job. Clogged filters do nothing, so no point in running it.

          • Sfh1975 on 26/05/2023 - 14:16

            @JimmyF: Thanks, I am perfectly happy to spend that much. My issue is that I have seen so many sellers, varying from $30 to $150 that one starts wondering if the cheap ones are really doing their job. As you say, the minimum they can do is to perform as expected (i.e. comply with the HEPA standard- blocking 99.97% particles beyond a certain size, if memory serves) but impossible to know whether a random manufacturer meets this standard.

            • deadpoet on 26/05/2023 - 20:41

              @Sfh1975: Never buy the no-name generic filters, you cannot trust them. Only buy the genuine Xiaomi HEPA filters, and those cost quite a bit more. If the price is too good to be true, it's usually a no-name filter. If there was a 3rd party manufacturer that made proven and tested HEPA filters for the Xiaomi series then I'd happily buy them, but there is no such thing at the moment.

  • CyberMurning on 26/05/2023 - 12:02

    damn too late already has one robot

  • Tommybot on 26/05/2023 - 12:03

    Any discounts on the filter?

    • dman1 on 26/05/2023 - 12:20

      Have you tried Kogan, they often have the HEPA range for the 3 series at a very reasonable price.

    • anfuni on 26/05/2023 - 12:25

      read previously that filter deals will be available this month but no deals as of yet..
      Maybe next month

    • rekke on 26/05/2023 - 13:29

      Aliexpress

  • Aek on 26/05/2023 - 12:32

    Is the Vacuum is great for that price? Does anyone has experience of using it?
    Thank you

    • Sunillinus20 on 26/05/2023 - 12:35
      +1

      Good vaccum especially for that price. Cant find one. Have been using it more than a year now but have not used the mop function. Only issue now after bit more than a year is the battery. It does not stay long enough and so the vaccum wants to keep going back to the charging station a lot. But have read the same issue with other users who fixed it by ordering a battery. I am yet to do that i.e. spend $40 for the battery and reaplce it.
      Still worth to buy in my opinion

    • cyob on 26/05/2023 - 12:46
      +1

      Got one about a year ago. The vacuuming works great on hard floors but not too well on carpets. I have never used the mopping function. A friend who has the same model told me that the mopping is okay but not as good as using a mop. If you are looking for something for vacuuming hard floors, you can’t go wrong with S9. For vacuuming carpets and hard floors, I’d save the money for something more expensive like roborock S7 MaxV

  • lawrele on 26/05/2023 - 12:37

    Bought the Viomi S9 about a year ago now and the battery drains super fast. Doesn't even get through half of what it used to before it has to head back to charge. Is it possible to replace the battery?

    • 0 0 0 on 26/05/2023 - 12:54

      Yes plenty threads and deals posted

  • capslock janitor on 26/05/2023 - 12:46

    any mi 2 purifyer ?

    • DingoBlue on 26/05/2023 - 12:56
      +1

      Air Purifryer? Great idea!

      • Tiggrrrrr on 26/05/2023 - 17:45

        makes the house smell like crispy chicken

  • DaTa on 26/05/2023 - 12:53
    +1

    Need a filter for a 2s well overdue but haven't seen many sales, not really impressed with the Xiaomi home line up

    • Clear on 26/05/2023 - 13:33
      +1

      Panmi have a heap more of these on the way I'll see how far away they are.

  • JimmyF on 26/05/2023 - 13:10

    Any 4 Pro deals?

    • HiredGoon on 27/05/2023 - 10:42

      I have the Pro 4, chasing the filters is an effort, everyone seems to be out of stock, and has been for months.
      If anyone knows where to get replacement Filters (BHR5062GL) at a reasonable price, would be appreciated.
      Best price I have found is PCByte but waiting on stock.

  • 31mop on 26/05/2023 - 13:17

    Do air purifiers use much energy?

    • JimmyF on 26/05/2023 - 13:26

      5-30w depending on the fan speed.

      • Sfh1975 on 26/05/2023 - 13:28
        -1

        Or more.

        • Ezekiel2320 on 26/05/2023 - 13:36
          +1

          About as much as a simple box fan… 30-50W max.

          Surprise! This device is just a fan - in a box.

          • Sfh1975 on 26/05/2023 - 14:11

            @Ezekiel2320: Not to prolong the discussion but read my answer above and I said it can be more than 30W. 3H uses 38W while 4 Pro uses 50W. And they at least mention some kind of an estimate, others don't, and for good reasons.
            These are not just a fan in a box, there are usually 3 to 5 layers of filters, one of which is HEPA which, if doing its job properly, will reduce the air flow considerably. Hence the CADR figure. And if an air purifier is not equipped with a sensor, it will run at a constant speed, thus using more energy. There can be so many factors affecting the quality of the air that essentially make quoting the wattage useless, hence many just provide an estimate, or to avoid any legal issues, the maximum wattage these devices can run on.
            Hope that helps!

            • JimmyF on 27/05/2023 - 11:07

              @Sfh1975:

              These are not just a fan in a box, there are usually 3 to 5 layers of filters, one of which is HEPA

              Last time I looked the filter doesn't use power any power onl the……fan ;)

              So yeah, these are just a fan in a box basically, my Xiaomi Air Purifier unit is currently using 8w by the power plug with the fan on 1/3 speed, at the highest speed is about 25w.

              And if an air purifier is not equipped with a sensor, it will run at a constant speed

              Mine has a sensor but only ever run it on fixed speed.

              or to avoid any legal issues, the maximum wattage these devices can run on.

              This is why they quote the MAXIMUM wattage the device can use, which for my unit is 30w but doens't go anywhere near it or over it like you claim.

  • Pat Rick on 26/05/2023 - 13:28

    I haven't seen any mention of the noise level of the purifier, at 60dB is that intrusive?

    Plan is to run this overnight while I sleep, examples of 60dB noise level is background conversation.

    Hoping it won't disrupt sleep.

    • Sfh1975 on 26/05/2023 - 14:18

      Usually it wont. Some have sleep mode making them quieter, though at some loss of filtration.

    • Tiggrrrrr on 26/05/2023 - 17:48

      If it is actually 60dB, then the noise standard for sleep is < 35dB(A).
      6dB is a doubling of sound pressure. So it's roughly 4 times louder than recommended for sleeping?

      EDIT: the advertised values are 32.1 dB(A) in Night Mode, with a maximum noise level of 64 dB(A). So at 32.1dB(A) that is well under the disruption limit of 35dB(A).

    • deadpoet on 26/05/2023 - 20:45

      60db is very loud and intrusive, yes — but that's the noise when it runs at max power. If you're used to white noise machines or running a powerful fan while sleeping, then it's essentially the same thing. You'll probably get used to it rather quickly.

      Having said that, you can manually control the fan speed and tone it down for sleeping etc as you need to. It's pretty rare that you'd need to run an air purifier at full power for hours on end.

  • Spamazon on 26/05/2023 - 14:28
    +2

    Ikea one is good. Cheaper filters only 0.03% less filtering.

    https://www.ikea.com/au/en/p/foernuftig-air-purifier-white-7…

  • alx88 on 26/05/2023 - 18:12

    Worst vacuum cleaner ever. Failed after 13 months. Panmi is refusing to do warranty.

  • grang on 26/05/2023 - 18:15

    I have the robot vacuum
    wash floors ok. use y mop setting and 2 or 3 water level. use micro fibre and clean it well

    I vacuum first

    that said.my battery died after 18 months and have not looked for a replacement yet as my dream 9 stick battery cost almost the same as the stick

    also the auto empty never worked well. maybe 1 in 20. says the bag is full

    maybe I have a dud

    • Clear on 26/05/2023 - 18:21

      Previously genuine was about $60 from Panmi and 3rd party $40 from Kogan.

  • Weston on 26/05/2023 - 18:38

    I have this Mi 4 AP in loungeroom, plus Mi 4 compacts in each bedroom and kitchen.
    All run on auto setting, attached to Mi app.
    One real example, a split AC install in a bedroom. The drilling sent three of the units into red hazard mode, full speed.
    Five minutes after drilling, two units back to auto, the AP in that bedroom, back to auto mode in 10 minutes.
    Very impressed. It was proof, to me, of a good investment.

  • lltravel on 26/05/2023 - 19:11

    have the mi 4 pro and i cant find a filter anywhere

    pathetic really by a large company. who knows if they will sell filters for the 4

    • Clear on 26/05/2023 - 19:26
      +1

      @HanaLF any coming soon?

      • lltravel on 27/05/2023 - 20:22

        ended up on aliexpress and got one, been waiting 3 months now, no idea why it takes so long to make a filter.
        pathetic really.

        • 0 0 0 on 27/05/2023 - 23:07

          They're waiting to receive used ones to repackage up

  • Lone star on 26/05/2023 - 21:21

    My son is asking me to get him this unit. How is the Xiaomi vs Samsung?

    https://www.jbhifi.com.au/products/samsung-ax32-essential-ai…

    • deadpoet on 27/05/2023 - 16:59
      +1

      Air purifiers are essentially a powerful fan that forces air through a series of filters, so they all operate on the same basic principles. The difference is in the composition of filters and their cost, and also other potential quality of life features such as app control and sensors etc. I'd say you can't really go wrong buying an air purifier from any of the established brands, but you need to do your homework when it comes to filter availability and costs.

      For the Xiaomi series for example, a lot of people are experiencing difficulty buying genuine HEPA filters as they are often in short supply — there's lots of no-name 3rd party filters available, but I would not trust these at all since they have not been tested in any way.

      Generally speaking the bigger and more expensive machines deliver a higher CADR (clean air delivery rate) so they can cover more areas of a home. If you buy a smaller machine like the one you linked, it'll only cover one medium sized room.

      I own several of the Xiaomi 3H machines and I'm very happy with them, but I wouldn't recommend buying these until the genuine filter supply situation improves. I have no experience with the Xiaomi 4 series but I've heard of similar issues with getting filters at a reasonable price.

      • Lone star on 28/05/2023 - 17:13

        Wow. Thanks for the informations. My son's room is just a normal size bedroom so I think either purifiers would be suitable. But if you were to choose either one of them. Would you go for the Samsung or Xiaomi?

        • 0 0 0 on 28/05/2023 - 20:46
          +1

          Samsung. There's a reason why most government schools in Australia have Samsung and not Xiaomi. Plus I believe Choice magazine tested both and Samsung beat Xiaomi. Xiaomi performed relatively poorly but it's heaps cheaper if you're budget conscious. Buy once, buy right.

          And before people jump to conclusions that I'm biased, I actually have 3 Xiaomi air purifiers, 2 Homedics and 3 Philips. I'd buy the Philips anyday over the Xiaomi and Homedics if I had to start over. I got the Xiaomi first as they were cheap, rated well on paper and had app control. The Xiaomi do work and are great value for money but I'd pay more for performance next time round. No point having mediocre devices consuming electricity and space when you could get something better for the longer run.

          • Lone star on 29/05/2023 - 15:43

            @0 0 0: Ok. Thanks for your recommendation. I will order the Samsung air purifier for my son then.

    • 0 0 0 on 27/05/2023 - 23:08
      -1

      Check choice magazine for test results

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