Air Purifier - Recommendations Please?

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networkn

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#318051 10-Dec-2024 15:20

We are looking to get one of these for the bedroom.

We don't want to go overboard as we aren't sure it will actually benefit us.

I had been looking at two seemingly well reviewed Units:

trusens z-2000 air purifier

and the

https://www.pbtech.co.nz/product/HOMMIX33927/Xiaomi-Air-Purifier-4-with-Smart-APP-Control--OLED

Noise is a consideration, but we want something worth having.

Thoughts?

freitasm

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#3318821 10-Dec-2024 15:48

The problem with Trusens is that some parts disappear from the market over time.

You are supposed to replace the prefilter every few months, the filter less frequently and the UV light every year or so.

I bought six or so prefilters a few years back and used all of them. Now, you can only find the whole filter setup, which costs more.

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cddt

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#3318831 10-Dec-2024 17:06

Beurer LR 200 - got it discounted at around $200 a few years ago.

Again new filters are a problem, not available locally, but the situation is better now with Amazon stocking them.

I think there is a LR 210 now.

The LED lights are extremely bright, but "night mode" turns them off and the fan is virtually inaudible (and I'm very fussy about noises and lights in the bedroom).

We had it running at a higher speed in the baby's room to double as a white noise machine, but that required black duct tape over the LEDs.

Would buy again. Incredible the amount of visible dust it picks up in the pre-filter.

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Zorg2000

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#3318832 10-Dec-2024 17:07

We have 2 of the Xiaomi Smart Air Purifier 4. Can't really fault them. Quiet mode for nighttime which is fine for sleeping and it has a function to turn the LED lights down/off for nighttime as well. The app is relatively easy to use, and replacement filters have been easy enough to get through PB Tech. The filters have a NFC tag in them so you can't just clean them and put them back in.

tweake

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#3318845 10-Dec-2024 18:17

neither.

avoid anything with UV or ion generator. they are often fake (uv led), to small to actually do anything useful, or put out harmful stuff like ozone, hydroxls etc (which most of the non-fake ones do)

all you need is a fan (big enough for decent airflow), a good filter (hepa) and of a standard size that you can find replacements for.

Scott3

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#3318846 10-Dec-2024 18:24

Pay attention to the ongoing cost of consumables.

billgates

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#3318848 10-Dec-2024 19:17

As mentioned above by @tweake avoid any ionizers. They are bad for you.

We have 5 SmartAir air purifiers at home that were purchased few months ago. There is nothing smart about them tbh. They dont need to be smart.

We have SmartAir Blast in main open living area. Then a SmartAir Mini in TV room which links into the open living area. 1 x SA600 in home office, 1 x SA600 in master bedroom and 1 x SA600 in kids bedroom which both kids currently share. The 3rd bedroom is empty and once kids start sleeping in there own bedrooms, we will likely move the mini to master bedroom, move the SA600 from master bedroom to 3rd bedroom and replace TV room with another Blast.

SmartAir does not FUD's there numbers. You want seperate AQM (air quality monitors) to monitor the PM2.5, CO2 etc. I have Aranet 4 in 1 bedroom and QingPing Pro Gen 2 in open living. QP2 does PM 2.5 duties for the house. The filters are really good. The build quality of the air purifiers and CADR performance is really good.

You need to calculate the CADR of your rooms/house and purchase the air purifiers based on CADR required. Remember you need to sleep at night so you want air purifiers in bedroom that will meet the CADR requirements of the bedroom at the fan speed that will not disturb your sleep (under 32dB for most people). I waited for one of the long weekend sales as snapair who sells SmartAir in NZ often does 10% off. There is no longer any pollen allergies that my wife would suffer from and my sister in law's allergies disappear when she enters our home. You only need the carbon filters if getting rid of any smell is a requirement inside a home which we do not so did not buy those as extras.

Do whatever you want to do man.

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timmmay

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#3318908 10-Dec-2024 20:27

What do you need an air purifier for? What are you hoping to achieve with it? Have you consider ventilation instead of purification?

I have a TruSens 2000, I think. I only run it occasionally, maybe 8 hours a week, I live near a motorway and when I've got / had the outside door open I run it. The prefilter can be washed, I do that occasionally. I'll probably run into the problem Mauricio described earlier about filters eventually, but for now it's ok.

Ragnor

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#3318995 11-Dec-2024 00:40

We have two of the Xiaomi Air Purifier 4 from pbtech, purchased at the start of covid, they work well and pbtech still sells the filters (we haven't actually needed to replace the original filters as yet).

Generally we only run them at night when someone in the house is sick (ie: to reduce viral load being passed around) OR sometimes during summer peak pollen/allergy season.

You can of course DIY something significantly cheaper if you can be bothered, see corsi-rosenthal box articles for ideas here: https://www.texairfilters.com/category/articles/ and https://encycla.com/Corsi-Rosenthal_Cube

networkn

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#3319254 11-Dec-2024 12:29

100% not interested in DIY, happy to pay for something decent that just works :)

Kickinbac

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#3319275 11-Dec-2024 13:49

Daikin are selling theirs online now. But not as cheap as the options you are looking at.

I've got the smallest version and it seems to work well. We have it in our sons room that is an asthmatic.

https://daikinstore.daikin.co.nz/

Batwing

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#3319276 11-Dec-2024 13:52

Ragnor:
We have two of the Xiaomi Air Purifier 4 from pbtech, purchased at the start of covid, they work well and pbtech still sells the filters (we haven't actually needed to replace the original filters as yet).

Generally we only run them at night when someone in the house is sick (ie: to reduce viral load being passed around) OR sometimes during summer peak pollen/allergy season.

You can of course DIY something significantly cheaper if you can be bothered, see corsi-rosenthal box articles for ideas here: https://www.texairfilters.com/category/articles/ and https://encycla.com/Corsi-Rosenthal_Cube

A few times when diy has come up I've gone looking for parts and not found them available locally, or very expensive to ship via Amazon or AliExpress. Have you ever seen a local costing to back up this being cheaper than buying an off the shelf purifier?