Download - Air Fillter - Ly Thuyet Loc Cho Cleanroom
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clean air solutions
Presentation
for
EAC, Vietnam
Lars Kristensen
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1. Air1. Air
Clean air is important We eat 1 kg food per day
We drink 2 kg fluid per day
But we breathe 24 kg air per day !!
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Air
Oxygen
(21%!itrogen
("#%
Argon(1%
Gases
- water vapour
- CO2, H, Ne, He, O3 et
Particles
- volcanic ash
- sea salt
- dusts
- sand
- pollen
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How Clean i! "#e Air $How Clean i! "#e Air $
Particles in t$e AirParticles in t$e Air
Particles in t$e AirParticles in t$e Air
Particleslitre&o'acco smoe 1)) *illions
+ig$ ay 1 *illion
City 1)) -illions
Country roa. 1) -illions/ural area 1 -illion
Ocean 1)) &$ousan.s
Arctic 1) &$ousan.s
Clean room 1
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%artile !i&e in at'o!p#eri air%artile !i&e in at'o!p#eri air
00
AmountAmount AreaArea
eig$teig$t
Particle sie 3mParticle sie 3m
11
1)1)
4)4)
4444
4040
44,4444,44
%L
esst$anPa
rticle5iame
ter
%L
esst$anPa
rticle5iame
ter
),1),1 11 1)1)
44,4% less t$an 1 3m 644,4% less t$an 1 3m 644,4% less t$an 1 3m 644,4% less t$an 1 3m 6
")%")%
),1% 7 1 3m),1% 7 1 3m
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Particle size distribution of
atmospheric dust
Particles smaller than 1 mrefer to(
999 of numbers"# of weight
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How large i! 1 )'$
1 m8 11))) mm
+air9 1$# m
Pollen9 1# m
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How large i! 1 )'$
Pollen9 1# m
:n.ustrial .ust9 );0 m*acteria9 );
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Oil smoeOil smoe
&o'acco smoe&o'acco smoe
-etallurgical .ust-etallurgical .ust *acteria*acteria
VirusVirus
$at in. of particles are smaller$at in. of particles are smaller
t$an 1 micrometer =t$an 1 micrometer =
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%ro*le'! wit# air onta'ination%ro*le'! wit# air onta'ination
Healt# pro*le'!
Allergi reation!
lung di!ea!e!
aner+n!tallation pro*le'!
low effiieny for #eat e#anger!, fan!, et.
onta'ination of produt! 'iro #ip, drug!...
redued air flow
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/u''ary - Air/u''ary - Air
%tmospheric air consists of gases and dust
&ust is ' ##1 ( 1## )m
999 of the number of particles in outdoor air aresmaller than 1 )m
"# of the weight is from particles smaller than 1 )m
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3. 0+" N4+N+N43. 0+" N4+N+N4
0ilter perfor'ane - need!0ilter perfor'ane - need!
good efficiencygood efficiency
low pressure droplow pressure drop
long lifetimelong lifetime
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%artile 0iltration ffet!%artile 0iltration ffet!
1. 5iffu!ion
2. +ntereption
3. +nertia6. /training
7. letro!tati
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1. 5iffu!ion effet
Velocity
Particles smallerthan 1 m dont
follow the air flow.
They are
influenced by the
vibrations of theair molecules.
Fibre diameter Fibre density
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2. +ntereption effet>mall, lig$t particles
follo t$e air floaroun. a filter fi're; :f
t$e centre of t$e
particle follos a flo
pat$ $ic$ comes
closer to t$e fi're t$an
t$e ra.ius of t$eparticle, t$e particle is
intercepte.;
Velocity Fibre diameter Fibre density
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3. +nertia effet
Larer particles aretoo heavy to follow
the air flow around
a filter fibre.
Velocity Fibre diameter Fibre density
The lare particle
will impine
directly onto thefilter fibre.
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6. /training effet
Particles with adiameter reater
than the
clearance
between two
fibres cant pass
Velocity Fibre diameter Fibre density
* i f filt ith hi h
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*ecipe for a filter with high
efficiency and long life time
/'all fi*re dia'eter
A lot of fi*re!
arge filter area
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"#i! knowledge #a! 'ade
to use more fibres for all our
bagfilters than what is standard
within the industry
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"otal 'e#anial olleting effiieny
#)#)
?)?)
@)@)
2)2)
))),1),1 11 1)1)
Particles sie 3mParticles sie 3m
%%
5iffusion effect5iffusion effect
:nterception effect:nterception effect
>training effect>training effect
1))1))
:nertia effect :nertia effect
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7. letro !tati effet
Larger effect onLarger effect on
small particlessmall particles
B
Velocity Fibre diameter Fibre density
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7. letro !tati effet
Dlass fi'er >ynt$etic fi'er
(many, small fi'ers (fe, 'ig fi'ers
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7. letro !tati effet
+ig$ initial efficiency can 'e ac$iee. it$
electrostatically c$arge. fi'ers
+oeer, fi'ers ill Fuicly 'e .isc$arge. $en
expose. to out.oor air;
As long as 'ig sie synt$etic fi'ers are use., t$ey
ill not $ae same long term efficiency as a glass
fi'er;
+ong term test in rural en,ironment
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+ong term test in rural en,ironment
for glass fiber and synthetic media
)
1)
2)
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%re!!ure drop%re!!ure drop
Pressure drop measured in Pa- mm .Pressure drop measured in Pa- mm .22/- inch/- inch
0G and depends on'0G and depends on'
%ir flow%ir flow edia density- thickness- porosity3edia density- thickness- porosity3
ilter construction pocket shape- inlet etc3ilter construction pocket shape- inlet etc3
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0ilter 'edia - pre!!ure drop0ilter 'edia - pre!!ure drop
+ow pressure drop by'+ow pressure drop by'#ig# poro!ity#ig# poro!ity
low 'edia veloity airflowlow 'edia veloity airflow
Lo porosityLo porosity +ig$ porosity+ig$ porosity
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0ilter 'edia - pre!!ure drop0ilter 'edia - pre!!ure drop
"o get a"o get a good effiienygood effiienyandand relative low pre!!urerelative lowpre!!ure
dropdrop- fine fi*er!- fine fi*er!
#ig#er effiieny give! #ig#er d%#ig#er effiieny give! #ig#er d%opti'i&ing 'edia i! i'portant den!ity, fi*eropti'i&ing 'edia i! i'portant den!ity, fi*er
dia'eterdia'eter
0ilter onfiguration pre!!ure drop0ilter onfiguration pre!!ure drop
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0ilter onfiguration - pre!!ure drop0ilter onfiguration - pre!!ure drop
Gilter me.iaGilter me.ia
'loce.,'loce.,
$ig$ .P 8$ig$ .P 8
s$ort lifetimes$ort lifetime
Conical s$ape
Parallel pocets
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"e#nial lifeti'e"e#nial lifeti'e
5ependent on(5ependent on(
initial pre!!ure lo!!initial pre!!ure lo!!
'edia lofty 'edia give! *etter du!t'edia lofty 'edia give! *etter du!tau'ulationau'ulation
effetive filter !urfaeeffetive filter !urfae
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8edia - life ti'e8edia - life ti'e
+ofty material+ofty materialclogs up slower than a compact 5clogs up slower than a compact 5longer life timelonger life time
+arge fibers gi,es strength and loft+arge fibers gi,es strength and loft
+ig$ Loft, ex +:BGLO+ig$ Loft, ex +:BGLO
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0ilter !urfae - ife ti'e
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ife ti'e
For bafilters!
"#$ more media area ives1))% loner life time
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/u''ary - filter t#eory/u''ary - filter t#eory
/everal filtration effet! work! toget#er in a filter/everal filtration effet! work! toget#er in a filterffiieny i! lowe!t at 8%%/ dependent onffiieny i! lowe!t at 8%%/ dependent on
'edia, veloity et.'edia, veloity et.
"o apture !'all partile! - fine fi*er!"o apture !'all partile! - fine fi*er!
"#e lifeti'e i! dependent on 'edia, effetive"#e lifeti'e i! dependent on 'edia, effetive
filter area, airflow and environ'entfilter area, airflow and environ'ent
"#e on!trution i! i'portant"#e on!trution i! i'portantto a#ieve low d%to a#ieve low d%
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6. 0+" "9%/6. 0+" "9%/
Pre filters panel and bag3Pre filters panel and bag3
ine filters bag filters 6ine filters bag filters 6
pleated3pleated3
.7P%8+P% filter.7P%8+P% filter
%dsorption filters carbon3%dsorption filters carbon3
Hi 0l fi* l * filHi 0l fi* l * fil
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Hi - 0lo fi*er gla!! *ag filter!Hi - 0lo fi*er gla!! *ag filter!
B Lo cost
B Extremely
goo. me.ia
B VB>$ape
B 5istanceri''on
A/HA filt l t dA/HA filt l t d
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A:/OPACA:/OPAC
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Hi-Tech flters - HEPA & ULPAHi-Tech flters - HEPA & ULPA
%&'&L(% ) %(*&L(%%&'&L(% ) %(*&L(%with laminatorwith laminator
%&'&L(+ ) %(*&L(+%&'&L(+ ) %(*&L(+
(,L/T0 1'(,L/T0 1'
F&L(&+F&L(&+
(,L/T0(,L/T0
T+(T+(
5iff t t
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5ifferent !eparator!
Aluminum +ot melt
!e
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Ad!orption filter!Ad!orption filter!
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W#y Ad!orption filter! $$W#y Ad!orption filter! $$
*emo,al of gasses substances*emo,al of gasses substances
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W#at i! ativated ar*on $W#at i! ativated ar*on $
aterial with large surface area 1 ### m:8g3aterial with large surface area 1 ### m:8g3
/btained by pyrolysis of materials such as'/btained by pyrolysis of materials such as'
;oconut shell;oconut shell
;oal;oal
PeatPeat
0ood0ood
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Ativated ar*onAtivated ar*on
Pores in material gi,es the large surface'Pores in material gi,es the large surface'
-icropore
-acropore -esopore
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Ad!orption 'e#ani!'Ad!orption 'e#ani!'
Ad!orptionAd!orption
ever!i*le *inding *etween a 'oleuleever!i*le *inding *etween a 'oleule
and t#e !urfae.and t#e !urfae.
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Ad!orption 'e#ani!'Ad!orption 'e#ani!'
#e'i!orption#e'i!orption
+rrever!i*le #e'ial *inding *etween a+rrever!i*le #e'ial *inding *etween a
'oleule and i'pregnation.'oleule and i'pregnation.
A fA f
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Area of u!eArea of u!e
Ativated ar*on ad!orptionAtivated ar*on ad!orption/olvent!/olvent!
Odor!Odor!
Ativated and i'pregnated ar*onAtivated and i'pregnated ar*on #e'i!orption#e'i!orption
Aid, orro!ive ga!e! /OAid, orro!ive ga!e! /O22, NO, NO,,, H, H22//
A''oniu' NHA''oniu' NH33
0or'alde#yde0or'alde#yde
Nulear filterNulear filter
7 0ilter eono'y
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7. 0ilter eono'y
The runnin costs depend on!
1; Life time
2; Energy costs
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0ilter eono'y - ife ti'e
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0ilter eono'y - ife ti'e
For bafilters!
"#$ more media area ives1))% loner life time
/perating economy 5 low pressure drop
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/perating economy low pressure drop
E : energy input ;kW#
: fan and fan 'otor effiieny
1>>>=
tdPqE
7
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7
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7nergy cost comparison
2i-flo 3(-4"5 6 poc7ets
16# Pa ) 36## m3)h
2i-flo 3%-4"5 1 poc7ets
1## Pa )36## m3)h
Example
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Example
8 9 1 m
3
)s :91# ;F%
>>B.>
ABC>C>1
=
=
Filter class - cleaningt
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costs
@ormally #.#"mduct surface perm3)h supply air flow
&nstallations with F=" filter :0/":A>+/AE 02;1B1442
B CE! E! ""4Particle efficiency9
B EJ/OVE!& @4
"e!t rig urovent 6
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5E+>5E+>
p Gilterp Gilter
particle counterparticle counter
*esults7*/=7@? 489
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7*/=7@? 489
0rational partile effiieny
- effiieny E! !i&e
- effiieny E! du!t load
5u!t weig#t arre!tane
0inal pre!!ure drop 67> %a for la!!ifiation
EUROVENT 4/9 based on 0.4 m particle size
Report No. Test Organiation Location o! La"oratory Test #$per%isor &ates o! Test
''() *amfl A+ TRO#A HH ,('/
A. EV!"E Name 0o1el No. 0an$!act$rer 0ar2eting Organiation
TE#TE H3-FLO 0-45 *amfl A+ -Type 0e1ia 0e1ia Area Face &imentions &epth Notes
/EPO/&
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Fi"er glass ,.(m' 5,'65,'mm 455mm
$. %ANU&A"TURER# Rate1 Air7o8 3nitial Resistance Final Resistance
O'ERAT!N(ATA - - -". TE#T Test Air Temp. Range Test Air Rel.H$m. Range Test Air Flo8Rate #amp. Tip &iam&$st Fee1ing Rate
ATA /5-'59* :;5< (m=h 4 mm ; mg=m. TE#T 3nitial Resistance 3nitial E>ciency .( ?m A%g E>ciency .( ?m Final Resistance
RE#U)T# 5Pa '/.;< 4'.(< PaA%erage &$st @eight Arrestance &$st Hol1ing *apacity Note As Re$ire1
B,,< ;'5g
>
2>
6>
C>
A>
1>>
> 1>> 2>> 3>> 6>> 7>> C>> B>> A>> D>> 1>>>
&9>? 47& A g B
7
C;C7@;DA!B#4)mp
&9>? 47& A g B
>
1>>
2>>
3>>
6>>
7>>
> 1>> 2>> 3>> 6>> 7>> C>> B>> A>> D>> 1>>>
P*7>>9*7&*/P
>
6>
A>
12>
1C>
2>>
> 7>> 1>>> 17>> 2>>> 27>> 3>>> 37>> 6>>> 67>> 7>>>
%C*4+/0 A m"8h B
P*7>>9*7&*/P
&ust loaded filter
;lean filter
eig$teig$tarrestancearrestance
%M%M
aerageaerageefficiencyefficiency
%M%M
classclassE! ""4E! ""4
initialinitialefficiencyefficiency
at );@ 3mat );@ 3m
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?0A?0Amm#)#)#)A#)Amm4)4)
4)A4)Amm
AAmm?0?0
@)E@)Emm?)?)?)E?)Emm#)#)
#)E#)Emm4)4)
4)E4)Emm4040
40E40Emm
D1D1
D2D2D
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ore information on filter performance
7asier to understand
aster
>mall differences between different laboratories
Possible to use the same techniEue at installations
ilter may ha,e complete different properties in actual
conditions- for e
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ffiieny in real lifeffiieny in real life7fficiency #4)m A
#
2#
4#
F#
#
1##
# 2### 4### F### ### 1####
*unning time Ah
EJ" glass
EJ" synt$etic
"e!t of eletro!tati effet
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i!opropanol te!t
die!el fu'e!
?*7
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A/HA o''ittee i! working on a !tandard
A/HA 72.2
CN "C 1D7
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Particle ;ounter
;omputer
=al,e
Pump
anometer
G -
/a'pling pro*e
down!trea'
?1, pri'ary flow
?2, flow to partile ounter
4igure 1- sampling system
>ummary(general ,entilation
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>ummary general ,entilation
Old te!t 'et#od! will *e replaed
0rational partile effiieny will *e t#e new
te!t 'et#od Fworld wide@
"e!ting in atual in!tallation! will give 'ore
infor'ation a*out real propertie! of air filter!
"e!t 'et#od! - partiulate Air"e!t 'et#od! - partiulate Airfilter!filter!
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filter!filter!
.7P% and +P% filters
"otal 'e#anial olleting effiieny%%
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#)#)
?)?)
@)@)
2)2)
))),1),1 11 1)1)
Particles sie 3mParticles sie 3m
5iffusion effect5iffusion effect
:nterception effect:nterception effect
>training effect>training effect
1))1))
:nertia :nertia
"e!t 'et#od!-A*!olute filter"e!t 'et#od!-A*!olute filter
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/ld test methods/ld test methods &/P test #")m3&/P test #")m3
B> "92 #F$)m3#4H )m for ;hinese ,ersionB> "92 #F$)m3#4H )m for ;hinese ,ersion
%@/* I44(11 soda salt5#1H )m3%@/* I44(11 soda salt5#1H )m3
C7>(*P(;;##H1 #1(#2 )m3C7>(*P(;;##H1 #1(#2 )m3
@ew testmethod@ew testmethod 7@ 122 PP>37@ 122 PP>3
"e!t 'et#od!"e!t 'et#od!
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/,erall efficiency/,erall efficiency
+eak test ( >canning+eak test ( >canning
"e!t 'et#od! - overall effiieny"e!t 'et#od! - overall effiieny
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monodisperse aerosol #" )m3 photometer mass concentration3
efficiency at #" )m particles
polydisperse aerosol
particle counter size and number3
PP>
5OP test
E! 1#22
"e!t'et#od!"e!t'et#od!- eak te!t- eak te!t
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photometer mass concentration3photometer mass concentration3
1## and 2# air flow1## and 2# air flow
low sensiti,itylow sensiti,ity
photometer J cold &/Pphotometer J cold &/P
higher sensiti,ity than &/P testhigher sensiti,ity than &/P test
particle counterparticle counter
leakage test at PP>leakage test at PP>
high sensiti,ityhigh sensiti,ity
5OP test
>canning it$
p$otometer
E! 1#22 (!eE! 1#22 (!e
"e!t rig for %artile !anning"e!t rig for %artile !anning
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5E>5E>
p Gilterp Gilter
Laser sensorsLaser sensors
7 );1 3m7 );1 3m
7 );1 3m7 );1 3m
7 );1 3m7 );1 3m
7 );1 3m7 );1 3m
E! 1#22B1E! 1#22B1
&estmet$o.&estmet$o.
7 );1 3m7 );1 3m
5ilution
"e!t rig for 0ilter la!!e! H1> to I1B
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Oerall efficiencyOerall efficiencyat -PP>at -PP>
%M%M
#07#0 +1)+1)
Gilter classesGilter classesE! 1#22B1E! 1#22B1
local lealocal lea(%(%
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74074044;044;0
44;4044;40
7#07#0
44;44044;44044;444044;4440
44;4444044;44440
44;44444044;444440
+1)+1)
+11+11+12+12
+1
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Centilation flters
A#HRAE flters
=entilation filters %>.*%7 filters3
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P/E G:L&E/P/E G:L&E/
Pleate. PanelPleate. Panel
*AD G:L&E/*AD G:L&E/
+:BCAP+:BCAP +:BGLO+:BGLO
Dlass fi'er filterDlass fi'er filter
>BGLO>BGLO
>ynt$etic filter>ynt$etic filterCO-PAC& G:L&E/CO-PAC& G:L&E/
A:/OPACA:/OPAC
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
84/101
Pleate. Panel (D@Pleate. Panel (D@ +:BCAP +G#)20 (D
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
85/101
B Lo cost
B Extremely
goo. me.ia
B VB>$ape
B 5istance
ri''on
Calulation of 'edia area
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
86/101
.eight K &epthK2K L Pockets
Co'pat filter!
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
87/101
A:/OPACA:/OPAC
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
88/101
B Lig$tB !o metal parts
(com'usti'le
B +ig$ capacity
B Lo .PB Long life time
Plastic frame an. $ot melt
separators
%C*/P%; G*77@ "GP 6 "GP.
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7/25/2019 Air Fillter - Ly Thuyet Loc Cho Cleanroom
89/101
- Very liht :3 7