WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,823
- Reaction score
- 11,447
Colleague WA me at 2000h, Tampines. Got v slight burning smell again.
Wah lao eh....2140h now. I think the smoke come back again.
This 2014 haze damn jinxed leh.
NASA map today still show many hotspots esp in southern sumatra. Saw on aqicn Tomorrow Wind forecast s or sse!

Night shift data entry clerk bo kang zho already...
Can ask Vivian to prepare for OT pay liao....
Even Home did not update its advisory for today. The one I just saw is dated 27 Oct.
3M Filtrete media expensive leh. You just want to block the bypass so that the air is going through the HEPA media.
There are are a variety of ways to tell.
(1) One very exact and pratically what professional use do is to measure the pressure exerted resistance by the HEPA filter when in use. When it is "blocked" or more correctly termed as useful lifespan reached, it would exert more pressure resistance.
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(2) Another exact way is to weigh the filter. There is a specific grams of particulate matter a HEPA can hold. You will find this number as a spec for those cleanroom HEPA filter panels, eg 61cm x 61cm x 50mm panel can hold 60 grams.
(3) For the regular folks like us with home usage, what we can do is to get those anemometer measuring windspeed and do a wind velocity check during Day 1 usage and a few months after that.
Taobao got sell the wind anemometer devices, got few-in-one also termed as portable weather station.
(4) Use your hand to feel and execute some agaration.![]()
Forgot to mention...the sides just push tissue paper in the prevent bypass. Top part after slicing...use scotch tape.

