Air purifier? - Part 2

[WussRedXLi]

Do ap help in reducing dust build up?
eg. Under the bed, the corners, hard to reach places?

It does reduce, but only if you use that 24/7, which isn't that recommended.

Else the reduction is quite insignificant even if it's 12/7

 

[iamkira]

Iamkira,

AX40 12hrs daily.
@ Current tariff yake 20c per kWh, will consume $2.16 monthly only.

Thanks. i am considering to get one to put in my office

 

[iamkira]

AP damn useful when applying screen protector also, just let it blast for half an hour in a small room and stick the screen protector fast, guaranteed to have little to no dust.

what screen protector? can share more info?

 

[Mach3.2]

what screen protector? can share more info?

Just about any screen protector for your phone and tablet loh...

 

[toyknight]

Looking for a dehumidifier for my living room as the furniture is getting moldy. Any suggestion of models? Thanks.

 

[sehsuan]

Looking for a dehumidifier for my living room as the furniture is getting moldy. Any suggestion of models? Thanks.

perhaps you can start with a powerful fan to create circulation - mould should have a hard time to start growing, unless your humid air is stagnant, i believe.

you'll know if the humidity is too high, if you have lots of booklice running around feasting on the mould...

 

[WussRedXLi]

Will post videos later.

Still in Riau province, consumer fireworks grounds.

Peak period recorded at 3270 ug/m3 PM2.5 concentration on the B4.
Wasn't very humid, but basically I guess it'd be in the just under 2000 ug/m3 range if normalised to NEA values.

Note : This is just what I recorded as peak as a typical spectator. In real life, there could be instances of people being exposed to higher levels.

Typical levels, fireworks and firecrackers.

201 pieces of huge incense at the temple setting, house about 50m away.
Levels lower than I thought though.
Peak levels sustained for about 6-8hrs this way. 18hrs of total burning time.

 

[centauro75]

Hi WRX I bot ax40 back in nov last year and switched on only at night during those haze days.

If I only use it for haze period and switch on during night + weekend full day, how long can those original Samsung hepa filter last?

Thanks

 

[kandinsky]

Hi WRX I bot ax40 back in nov last year and switched on only at night during those haze days.

If I only use it for haze period and switch on during night + weekend full day, how long can those original Samsung hepa filter last?

Thanks

The manual states estimated lifespan of between 6 months to 1 year based on 24 hour operation.That's 4380-8760 hours. Can do some agaration to get some estimates.

If you estimate nights to be 8 hours, and weekends to be 48, then you have 88 hours per week. So if you take the lower estimate in the manual for haze period, then just 4380 hours / 88 = approx 50 weeks lifespan? So... If you use for 8 weeks of haze period a year then technically it should last you 6 years?? If 4 weeks a year then technically up to 12 years?? Lol, provided you store properly inbetween. The filter material itself supposed to have shelf life of 10 years in storage (read somewhere), not sure how it changes for those in use.

- Replacement interval of the Integrated filter is between minimum 6 months to maximum 1 year based on 24 hours of operation per day. (You can use the filter longer if the daily operation hours are shorter.) Replacement interval varies due to level of air pollution. If there’s heavy dust in the area it will result heavier accumulation in the filter which will shorten the interval. Filter replacement indicator will be turned on and
notified you when it’s time to replace the filter. However, if the filter is too dirty, or if it smells, or if you feel the fan speed has gotten gradually weaker, you can replace it even though the filter replacement indicator
has not turned on.
• When you replace the deodorization filter, remove the plastic packaging before installing the filter.
• The filter replacement frequency differs depending on the operating mode because the air flow rate is
subject to the operating mode.

http://downloadcenter.samsung.com/c.../ACR_JUPITER-SI_MS_IB_04616A-02_EN_150803.pdf

 

[centauro75]

Thank u for the detailed advices

1)During non haze days, I put the 2 APs in bomb shelter. Is that the right storage?

2) the timer for filter lifespan : will it get reset when I off power n keep the APs in store room? No power means memory wiped out ?

 

[kandinsky]

Thank u for the detailed advices

1)During non haze days, I put the 2 APs in bomb shelter. Is that the right storage?

2) the timer for filter lifespan : will it get reset when I off power n keep the APs in store room? No power means memory wiped out ?

This is what the manual suggests:

Storing the product
f If the product is not going to be used for an extended period of time, put it into a box and store it in a dry, indoor site

I read for some air purifiers, the replacement indicator actually is a sensor that measures the speed of the motor, so that would not be dependent on any memory or timer. Not sure how the filter replacement indicator really works in the AX40, it might be the same or it might not.

The filter change indicator
x As a filter becomes covered with particles, the pressure drop rises. As the pressure drop rises, the motor speed increases in a very predictable way. The Ultra Clean air purifiers have a special filter change indicator that measures the speed of the motor, which indicates how "plugged up" the filter is. The filter change indicator determines when the filter has reached the end of its useful life, thus the user will know it is time to replace the filter. A yellow LED indicates the filter has reached 80% of its capacity. The red LED
indicates the filter has to be changed.

http://solutions.3mitalia.it/3MCont...assetId=1258562081124&blobAttribute=ImageFile

 

[centauro75]

Thanks so much.

1) for the activated carbon in the filter, does it last as long as the hepa filter ? I have a fish tank at home and I changes the AC every 3 months (although my fish tank filter is switched on 24/7).

2)any cheaper source (alternate brand) other than the Samsung authentic filter which costs about $50 each. So expensive

Thanks.

 

[sehsuan]

Thank u for the detailed advices

1)During non haze days, I put the 2 APs in bomb shelter. Is that the right storage?

2) the timer for filter lifespan : will it get reset when I off power n keep the APs in store room? No power means memory wiped out ?

1. depending on your humidity in the store room/shelter. do you monitor? you may be having a happy hunting ground for booklice

Thanks so much.

1) for the activated carbon in the filter, does it last as long as the hepa filter ? I have a fish tank at home and I changes the AC every 3 months (although my fish tank filter is switched on 24/7).

2)any cheaper source (alternate brand) other than the Samsung authentic filter which costs about $50 each. So expensive

Thanks.

1. activated carbon is to adsorb gases. if you don't use the filter, it shouldn't be used up. theoretically...

2. very cheap already. you can try to find out the prices for BlueAir or IQ Air, or Sharp replacement filters. i personally have 2 replacement filters for each xiaomi AP i have.

 

[whitesand]

Just to chip in:

I use Samsung AX40 too, 1 since 2013 and 2 since 2015. My experience is that the suggestion of changing filter every 6-12 mth is appropriate (for my case). Though the filter may not get so dirty to the extend that it trigger the "change filter indicator", but the smell of old (but theoretically still usable) filter is getting worse when turn on. So, I change them when I cannot stand the smell anymore.

Eg 1: 2013 AP arrived after the PSI400 panic, so only lightly used. So I am able to use them for a year, till 2014.

Eg 2: Recent 2015 Aug haze, my 2 new AP arrived before the worse of haze, used till Dec 2015 and change to new one as the smell is getting worse. I intend to use these new one till the next haze, or the smell get beyond my tolerance.

The manual states estimated lifespan of between 6 months to 1 year based on 24 hour operation.That's 4380-8760 hours. Can do some agaration to get some estimates.

If you estimate nights to be 8 hours, and weekends to be 48, then you have 88 hours per week. So if you take the lower estimate in the manual for haze period, then just 4380 hours / 88 = approx 50 weeks lifespan? So... If you use for 8 weeks of haze period a year then technically it should last you 6 years?? If 4 weeks a year then technically up to 12 years?? Lol, provided you store properly inbetween. The filter material itself supposed to have shelf life of 10 years in storage (read somewhere), not sure how it changes for those in use.

 

[centauro75]

Thank u all.

So if I only use during haze period. The filter should be able to last 2 haze seasons right?

The smell thingy is due to the activated carbon whose main purpose is smell and chemicals/VOCs?as long can tahan smell, the hepa in the filter can last much longer so wasteful to change just because the AC is "full capacity" already?

 

[kandinsky]

Thank u all.

So if I only use during haze period. The filter should be able to last 2 haze seasons right?

The smell thingy is due to the activated carbon whose main purpose is smell and chemicals/VOCs?as long can tahan smell, the hepa in the filter can last much longer so wasteful to change just because the AC is "full capacity" already?

Actually, based on the hour estimates given in the manual, up to 6 seasons, if one 'season' is 8 weeks at your mentioned usage (8hr wkday, 24hr wkend). If 16 weeks, then 3 seasons.

Recall at least 1 person in this thread mentioned that they removed the AC layer cos they were too sensitive to the smell. So if it really comes to that, you can consider removing the AC layer and just using the HEPA.

You want cheaper there's 3rd party from taobao without AC layer, it will cost $30 before including shipping.

Example: http://world.taobao.com/item/522668837488.htm

You can see why most of us think $50 is a good price for the original.

---------------------------------------

Or if you want even cheaper, you can go for this method suggested by WussRedXLi:

http://world.taobao.com/item/41163239668.htm

I'll teach you guys how to save more with the AX40.

Every year, the haze months run for about 4 months. You can use 1 x original HEPA for 8 months hazy periods, so that's 2 years lifespan per original HEPA filter.

Non hazy period of 8 months, you can use this Taobao filter. Don't have to customise (so no need to type in Chinese to converse with the seller), just trim the part that runs along the pleat. Then the top part can just roll up the plastic packaging and plug the gap. It would work, trust me, I have measured.

Same, 4 months for the filter. So 1 year use 2pc.
RMB 29.90 per piece. Just buy 6 or 8 in 1 shot ba.

This would drop the airflow by about 35% max (it's more like 30% actually, actual measurement with my anemometer). So it becomes 210 m3/hr. It would also be slightly more silent, and suck less electricity due to slower motor rotation with the added resistance (as measured current draw with a multimeter). 210m3/hr is good for 14.5m2 room with 5 ACH, shd be just nice for MBR during non hazy months.

 

[whitesand]

Recall at least 1 person in this thread mentioned that they removed the AC layer cos they were too sensitive to the smell. So if it really comes to that, you can consider removing the AC layer and just using the HEPA.

I did tried once after removing the AC layer, but the smell is still there. This means that the smell does not come from AC layer alone. I also tried sunning the filter also don't help.

So no choice, change the whole filter.

 

[kandinsky]

I did tried once after removing the AC layer, but the smell is still there. This means that the smell does not come from AC layer alone. I also tried sunning the filter also don't help.

So no choice, change the whole filter.

Ah, okay. That means whole thing kenna contaminated. Did you happen to run it while there was heavy cooking (or something else that causes strong odors) in the house or something?

 

[yanbros]

What kind of smell and how Long have you used the filter. Would suggest changing the filter every 6 months if used daily.

 

[whitesand]

Ah, okay. That means whole thing kenna contaminated. Did you happen to run it while there was heavy cooking (or something else that causes strong odors) in the house or something?

No, I rarely use them to keep the cooking smell out. (I have a strong cooker hook for that). It mainly for the 2015 haze. The smell is noticeable even after 2 weeks of use during the 2015 haze period, it get worse as the days goes by. I only managed to drag its life till Dec 2015 after the haze is subsided then change to a new one.

Just side note: the new filter I changed on Dec 2015, visual inspection now shows that the filter is getting dirty after 2 mth of usage, but no smell (yet). I believe the smell actually come fr the whatever particles/residuals in the air during the haze period.