Air purifier?

[WussRedXLi]

most hdb should be 2.4m floor to ceiling.
dbss 2.6m ... EC maybe 2.8m.

you'll have to estimate area anyway. . just multiply by 3 if want to be kiasu lor. some over-provisioning is always good

easiest way is to look at your floor plan.

I just measured accurately with a metal tape measure, mine is 2.58m. Regular 4-room BTO. My mum's place at Chinatown 3-room flat (damn old), I remember is 2.6m also.

Then I salah a bit liao, I used 2.8m.

 

[WussRedXLi]

Check out the youku video in the below link that I am sharing. Got demo of laser particle counters and measurement of a Tiong air purifier. Formaldehyde (Jia3 Quan2 甲醛) dropped from 0.25 micrograms per m3 to 0.09 micrograms per m3.

PM2.5

Comparison with a RMB 60k DustTrak laser particle counter.

 

[WussRedXLi]

link: WHIRLPOOL AIR PURIFIER AP628W Air Purifiers - Courts Online Shopping

$279
Recommended Retail Price: $399

Drop price liao! I think last time when they launched this was mid 300 dollars.

It's a 200m3/hr air purifier.

 

[thewiseone]

Even at this price, i think the AX40 is still a better buy for its performance and quality.

Drop price liao! I think last time when they launched this was mid 300 dollars.

It's a 200m3/hr air purifier.

 

[WussRedXLi]

Chinese documentary about PM2.5 and how it affects you.

AM inside speaking fluent Chinese!

Apparently the air pollution is so bad that aunties are *wearing* air purifiers to the wet market. (masks are too restrictive....I wonder why they are not wearing FFP-1 with exhaust valves which are basically 80% efficiency vs 95% for N95)

空气PM2.5大"爆表" å*¥åº·å‡ºè¡Œå¾ˆé‡*è¦*—在线æ’*放—《æ‹*客视界》—资讯—优酷网，视频高清在线观看

 

[WussRedXLi]

Even at this price, i think the AX40 is still a better buy for its performance and quality.

Truth be told, I still like the design of Sharp air purifiers best. My wife thinks so too.

She hates my Samsung AX40. It's banned from the MBR. I am using it in the PC room. The NAP501 is in the baby/kids room.

The S$279 price and 350 m3/hr does nothing for her.

 

[plasticpistola]

The -ve ion ioniser (in Samsung speak that's the Virusdoctor) is denoted by the circular circles icon. You can see this on the AX40.

On the AX041FCVAUW, there is no such icon.

AX40H5000GMD

Bro moi samsung AX40 lai liao!

But I can't seem to set it to Auto mode leh - it will move from the Lock mode, skip Auto mode, then go to High Speed mode. Any idea how come like that ah?

Then how does the air cleanliness light work? Right now it's bright bright only on the left side of the panel.

 

[aErOpLaNe911]

Ntuc bedok mall got one 3M air filter machine going for $399, supposed to be for area of 34 sqm (wonder why not volume).

Is it any good?

 

[WussRedXLi]

Bro moi samsung AX40 lai liao!

But I can't seem to set it to Auto mode leh - it will move from the Lock mode, skip Auto mode, then go to High Speed mode. Any idea how come like that ah?

Then how does the air cleanliness light work? Right now it's bright bright only on the left side of the panel.

You press the second left button (beside the power button) to cycle between the 4 speeds.

 

[tmkedmw]

But wouldn't ACH introduce another variable? Obviously your room and my room not same size (unless everything including furnishing exactly the same). Most ppl dunno the room size, must less the room volume!

IMHO, ACH is not another variable. Think of it this way.
What's air purifier for, to purify dirty air right? So how much dirty air is in the room and you want to select an appropriately sized air purifier to do the job. Therefore ACH (air change/hr) is the objective.
I remember seeing something on allergy.com.sg that a desirable ACH is between 4 and 8. See w.w.w.allergy.com.sg/aircareFAQ.html

ACH is the goal. The variables are air purifier cu.m/hr and volume of room which is simply area x height.
Height of hdb room is 2.6m. If u are on top floor, will have higher ceiling. Min. height from floor to ceiling is 2.4m, mandated by HDB.

 

[tmkedmw]

AX40 cannot tune auto mode sensitivity?

Auto mode is pre-programmed by Samsung to vary the airflow depending on the readings from its sensors.
eg if air is relatively clean, it will lower the airflow, and vice versa.

So in that sense, you can't tune its sensitivity.
But do remember to periodically clean the sensors as per the maintenance manual.

 

[tmkedmw]

Ntuc bedok mall got one 3M air filter machine going for $399, supposed to be for area of 34 sqm (wonder why not volume).

...

Air purifier are not spec for volume as rooms across the world have different heights. Also, most people grasp the concept of how big the room is (area wise) but don't know the volume of their room till they pull out a calculator

 

[plasticpistola]

You press the second left button (beside the power button) to cycle between the 4 speeds.

I tried again this morning and can liao

Last night dunno why it kept skipping the auto button.

This set is really damn quiet. Thanks for the recommendation, bro!

Btw, should I set it to auto all the time, since auto will just do its work depending on how clean/dirty the air is?

If yes, then why do we need low and medium speed functions ah?

 

[tmkedmw]

...
Btw, should I set it to auto all the time, since auto will just do its work depending on how clean/dirty the air is?

If yes, then why do we need low and medium speed functions ah?

Some may not find the pre-programmed auto mode to their liking. So there is a choice of operating it manually.
Eg turn on manually and turn it to max until air becomes clean (blue light),
then switch to auto.
Some may like to switch to low if Psi is trending lower.
Basically your choice as to how u want to control.

 

[WussRedXLi]

I tried again this morning and can liao

Last night dunno why it kept skipping the auto button.

This set is really damn quiet. Thanks for the recommendation, bro!

Btw, should I set it to auto all the time, since auto will just do its work depending on how clean/dirty the air is?

If yes, then why do we need low and medium speed functions ah?

It's not easy to trigger the set into higher speeds, if you are more geared towards cleaner air, then i'd suggest put it into High speed for half an hour first. Then switch to Auto.

 

[WussRedXLi]

NEA's first daily haze report: Tuesday's air quality to be moderate

NEA's first daily haze report: Tuesday's air quality to be moderate

Published on Jun 16, 2014 6:56 PM

By Grace Chua


SINGAPORE - The air quality till Tuesday at 6pm is expected to be in the moderate range, the National Environment Agency said on Monday evening in the first of its daily haze forecasts for the haze season.

At 6pm on Monday, the 24-hour Pollutant Standards Index ranged from 52 to 54 over various parts of the island.

As the south-west monsoon sets in, the prevailing winds will blow from the south and south-west, which could bring smoke haze from hotspots in Indonesia's Riau province.

The number of hotspots detected in Sumatra on Monday was 114, with localised smoke plumes observed from some hotspots in Riau, the NEA said.
- See more at: NEA's first daily haze report: Tuesday's air quality to be moderate

 

[WussRedXLi]

1535h - NASA FIRMS image

Disclaimer: The NASA FIRMS system is part of LANCE (Land Atmosphere Near real-time Capability for EOS) operated by the NASA/GSFC Earth Science Data and Information System (ESDIS). The information presented through the NASA FIRMS are provided "as is" and users bear all responsibility and liability for their use of data, and for any loss of business or profits, or for any indirect, incidental or consequential damages arising out of any use of, or inability to use, the data, even if NASA or ESDIS were previously advised of the possibility of such damages, or for any other claim by you or any other person. ESDIS makes no representations or warranties of any kind, express or implied, including implied warranties of fitness for a particular purpose or merchantability, or with respect to the accuracy of or the absence or the presence or defects or errors in data, databases of other information.

 

[WussRedXLi]

Spiking since the weekend.

No rain there.

 

[invisible.hippo]

where can i get sharp replacement filter?

Best denki got sell?

 

[WussRedXLi]

Jambi area got hit.

Satellite image of clouds. Cloudless.

WunderMap® | Interactive Weather Map and Radar | Weather Underground