How Electronic Air Cleaning Works - Honeywell F50E Owner's Manual

HOW ELECTRONIC AIR CLEANING WORKS

A word about
particle size
69 -03 76— 4
T h e p a r tic le s r e m o v e d b y th e e le c tr o n ic a ir
c le a n e r te n d to b e v e r y s m a ll— le s s t h a n 1 0
m ic r o n s . B u t w h a t is a 1 0 m ic ro n p a r tic le ? T h e
e y e o f a n a v e r a g e s iz e s e w in g n e e d le is a b o u t
7 5 0 m ic r o n s a c r o s s , a n d th e d o t in th e
w o r d m ic r o n is a b o u t 4 0 0 m ic r o n s . G e n e r a lly ,
p a r tic le s s m a lle r t h a n 1 0 m ic r o n s c a n b e s e e n
o n ly w ith a m ic r o s c o p e , e x c e p t in v e r y la r g e
c o n c e n tr a tio n s , s u c h a s a p u ff o f s m o k e . Y o u r
e le c tr o n ic a ir c le a n e r c a n r e m o v e e v e n s m a lle r
p a r tic le s t h a t c a n b e s e e n o n ly w ith a n e le c tr o n
m ic r o s c o p e .
A lth o u g h p a r tic le s o n e m ic ro n a n d s m a lle r m a k e
u p o n ly a b o u t 2 0 p e r c e n t o f th e to ta l
p a r tic le s in u n filte r e d a ir, t h e y a c c o u n t f o r m o r e
t h a n 9 9 p e r c e n t o f th e
B e c a u s e t h e y a re s o tin y , t h e s e p a r tic le s r e m a in
s u s p e n d e d in th e a ir u n le s s t h e y c o llid e w ith a
s o lid s u r fa c e . T h e n t h e y a tta c h b y m o le c u la r
a d h e s io n a n d s t ic k lik e g lu e , s ta in in g w a lls a n d
fu r n it u r e a n d c o a tin g y o u r a ir c o n d it io n in g c o ils .
A n d s o m e o f t h e s e p a r tic le s c a n c a u s e a lle r g ic
r e a c tio n s o r s im p ly m a k e t h e e n v ir o n m e n t le s s
p le a s a n t.
14
weight
number
o f p a r tic le s .
i
in th e
o f