Air purifier?

[ralliart12]

The AX40 only consumes 0.14kWH of electricity after being powered on High mode for 6 hours straight; that translates into $.02849 (based on Oct's tariff of $0.02035/kWH).

 

[Asakura]

yes which brings back to WRX point
its cheaper to own a AP and on it all day
den aircon all day during haze period

and u get stupid ministers going on tv telling people to stay in aircon rm and n95 is not important. lol

 

[gravavva]

yes which brings back to WRX point
its cheaper to own a AP and on it all day
den aircon all day during haze period

and u get stupid ministers going on tv telling people to stay in aircon rm and n95 is not important. lol

They want to earn more from electricity bills

 

[dqwong]

Sometimes you wonder does Sg Govt really have true interest in the well being of the people or do they have other motives.

 

[BigBlueBox]

LG filters are washable?

Got a question about the LG air purifiers being advertised as having washable filters.

My understanding here is that the HEPA filter has to be replaced. So is the advertisement referring to the active carbon filter being washable?

Active carbon is just a nicer name for carbon powder right? So how can it be washable?

Anyone who bought the LG purifier can shed some lights on this?

Thanks.

 

[WussRedXLi]

I saw a youtube clip comparing the noise measurement between balmuda and xiaomi ap.

No way do you take noise measure at the outlet.

Anyway xiaomi jet mode is loud but not as loud as a vaccum cleaner.

Can be used at medium speed (for high ACH) for bedroom if you have a working standing fan. Treat it as white noise.

Long time ago when i was still playing with hifi, i know that every doubling of the speakers/2X increase in power = +3dB.


Lets not talk about the LG LA-Q379/Samsung AX40.

We talking about the A50 and Xiaomi, which you have measured as 50dBA and 61dBA. And we treat it simply that we put into a normal room and assume little phase cancellation since it is "white noise" (it's definitely not sine wave! )

1 x A50 = 50dBA
2 x A50 = 53dBA
4 x A50 = 56dBA
8 x A50 = 59dBA
16 x A50 = 62dBA

You can safely saw that 10 units of A50 clustered together, in real life in a real big room sited at one end, sounds nearly the same as 1 x Xiaomi

Wish you can do the same for the AX40, but i don't reckon that you have one.


May I shd get a SPL meter from TB. Old one spoilt liao.

 

[WussRedXLi]

Got a question about the LG air purifiers being advertised as having washable filters.

My understanding here is that the HEPA filter has to be replaced. So is the advertisement referring to the active carbon filter being washable?

Active carbon is just a nicer name for carbon powder right? So how can it be washable?

Anyone who bought the LG purifier can shed some lights on this?

Thanks.

I threw away an old LG LA-Q379SB filter, didn't try to wash it. Should have tried to wash it and see what happens.

But seriously, by right washing shouldn't be able to get most of the PM out. What the original LG filter is that the construction of the media has a tougher outer surface that can withstand abuse. If you have touched borosilicate filter media before (the stuff that most cleanroom filters use), it is extreme delicate. Your fingernails can create a puncture on it just by slidng along the pleats.

Washing and physical cleaning actions will compromise the HEPA integrity.

 

[WussRedXLi]

The AX40 only consumes 0.14kWH of electricity after being powered on High mode for 6 hours straight; that translates into $.02849 (based on Oct's tariff of $0.02035/kWH).

That means 0.023kWh, or 23W electrical consumption .

I think it's a bit off, but that's ok, ard the ballpark can liao. It should be around 27W thereabouts.


Gun 2 units, around 50 watts. Approx 650+ m3/hr airflow.

Contrast with other APs.

 

[WussRedXLi]

The 25mm are fm the same seller as the customised Samsung AX40 filter or you're referring to the 30x30cm ones?

It's another seller. The 300 x 300 x 25mm one that costs RMB26, some 百姓 HEPA, or common people HEPA.

The main factories manufacture more than 100 million HEPA filters annually in such a size. The production lines are massive. That's why can be so cheap.

China air purification is a 14 billion USD market, from a source that read.
Now they have standards and test labs/agencies to try to give consumers a good unbiased source of reference, else it got messy a while ago.

 

[BigBlueBox]

I threw away an old LG LA-Q379SB filter, didn't try to wash it. Should have tried to wash it and see what happens.

But seriously, by right washing shouldn't be able to get most of the PM out. What the original LG filter is that the construction of the media has a tougher outer surface that can withstand abuse. If you have touched borosilicate filter media before (the stuff that most cleanroom filters use), it is extreme delicate. Your fingernails can create a puncture on it just by slidng along the pleats.

Washing and physical cleaning actions will compromise the HEPA integrity.

Just based on the marketing pictures, the filters comes in 2 parts - Active carbon and HEPA correct?

Based on what you have described, I am guessing that you are talking only about the HEPA filter being made of very delicate materials and thus cannot be washed. What about the active carbon part of the filter? Am I right to say the active carbon are actually carbon powders and will spoil if washed with water?

So the advertisement is actually misleading since none of the filters can be washed and reused?

 

[WussRedXLi]

Just based on the marketing pictures, the filters comes in 2 parts - Active carbon and HEPA correct?

Based on what you have described, I am guessing that you are talking only about the HEPA filter being made of very delicate materials and thus cannot be washed. What about the active carbon part of the filter? Am I right to say the active carbon are actually carbon powders and will spoil if washed with water?

So the advertisement is actually misleading since none of the filters can be washed and reused?

Bro, this is really not the time/place/thread to question such things leh.
MY laser particle counter is registering an upward trend again.

You happy can liao.

 

[BigBlueBox]

Bro, this is really not the time/place/thread to question such things leh.

You happy can liao.

Err...This is the Air Purifier thread leh...how come its not the place to post such question? Not trying to be funny here lar..I am asking because I am considering getting another AP and so am considering whether to get the LG AP instead of the Samsung AP.

I recalled that you did a comparison and the Samsung AX40 AP came out to be the (slightly) better option compared to the The LG AP because the Samsung filter is more readily available and can be bought from TB.

Hence if the LG filter can really be washed and re-used, then LG AP would have been the better option right?

Just wanted to verify the claims made in the marketing materials against reviews from people (such as yourself) who have actually used the AP.

 

[Tryg2015]

Morning bro wuss

I ordered the cheap hepa from TB going to arrive soon, and also the cheap filterate sheets since I can't the 3M anywhere

You have prob answered this before, pai sei confirm again:

For living room fans mine are all the type where the motor is a bump at the back, so I place the hepa on the front and secure it somehow? (The product page shows people tying it to the back of the fan, but impossible for mine leh)

The filterate piece better to place on the back or the front?

I'm thinking some fans use filterate, some fans use hepa... Experiment a bit

Edit: I just realized that since the hepa I ordered is the loose kind that can be cut, I can cut into smaller pieces and still cover the back of the fan around the motor... Brain a bit slow, haha

Think should work right?

 

[keigo22]

Err...This is the Air Purifier thread leh...how come its not the place to post such question? Not trying to be funny here lar..I am asking because I am considering getting another AP and so am considering whether to get the LG AP instead of the Samsung AP.

I recalled that you did a comparison and the Samsung AX40 AP came out to be the (slightly) better option compared to the The LG AP because the Samsung filter is more readily available and can be bought from TB.

Hence if the LG filter can really be washed and re-used, then LG AP would have been the better option right?

Just wanted to verify the claims made in the marketing materials against reviews from people (such as yourself) who have actually used the AP.

There no such thing as really can wash away hepa, if really got don't you think everyone will be going for that since cheaper also..

Carbon is not for filter pm2.5 just for smell removal only...

 

[ktyandkyc]

without the rakuten clean air code, any other hacks to get discounts?

 

[xyz2006]

My AP got some kind of smells when I
switched it on. Should I change the filter?

 

[WussRedXLi]

Reporting from Ipoh Malaysia haze is so bad it's like smoking packs of ciggies and visibility very low

Yep...up north. Winds changed a bit more to SSE. If S or SSW we gone.

Rmemeber, JB hit AQI 122 for our yesterday's haze. COz Malaysia is using PM10 24-hr to convert to AQI

And during Hari Raya Haji PH, where we got 356 ug/m3 and 2 days worth of crazy haze here in SG just last Wed/Thur..... JB Larkin Lama registered AQI 189, for comparison's sake.

And Selangor area is registering AQI 289 now.

My mother of god!

 

[chuanz]

without the rakuten clean air code, any other hacks to get discounts?

Yup, wait till about Feb-Mar 2016... Many local stores would have discounts...

If you don't mind 2nd hand (change filler and clean up), should start seeing some in Dec-Jan timeframe, but I'd figure that it'll peak in end Jan/early Feb before CNY.

 

[WussRedXLi]

My AP got some kind of smells when I
switched it on. Should I change the filter?

Change it in Dec.

People are reporting 2 to 5 day old brand new HEPA filters smelling after using in this haze season.

The particulate matter load is extremely high.

 

[keigo22]

Yup, wait till about Feb-Mar 2016... Many local stores would have discounts...

If you don't mind 2nd hand (change filler and clean up), should start seeing some in Dec-Jan timeframe, but I'd figure that it'll peak in end Jan/early Feb before CNY.

Haha, those that sell their ap after the haze really..face plam..