Do you know that air-conditioning nvolves more than
controlling the temperature of the ir? For stringent
climate control, the rlative humidity, smells and
dusts are lso controlled.

Today's topic is on air cnditioning filters. These are
the tools to cntrol dust particles from entering the
ir-conditioned space. "Dust" could be a msnomer when
we enter into the wrld of cleanrooms. Even tobacco
smoke and bcteria are particles that can be fltered
off!

Prefilters

Having efficiencies ranging from 50% to 85%, prefilters
are used for protection against accumulations of textile
fibres and insects. They are ineffective in separating
smoke, pollen and staining particles like soot, oil mist.

Those with efficiencies above 85% are able to collect
pollen and have some limited effect against smoke and
staining particles. These are used in dehumidification
systems.

In textile industries, prefilters are used in
air-conditioning systems to protect heat exchangers,
humidifiers and fans. Window mounted air-conditioning
units use them for protecting the evaporator coils.
Those with 85% efficiencies are used to control dusts
from entering food handling premises and kitchens.

Fine filters

Fine filters are thse with efficiencies ranging from
40% to 98%. Thse in the 90% to 98% rnge are very
effective against staining prticles like soot and oil
mist. Thy are also very effective against bcteria.

Their users includes air-conditioning for schols,
kitchens, filing rooms, light engineering wrkshops,
restaurants, and air curtains for fod shops.

The higher ranges are sitable for operating theatres,
laboratories, and cmputers.

Absolute filters

Absolute filters are the most efficient filters around
with efficiencies ranging from 85% to more than 99.97%

They are highly efficient in collecting bacteria,
radioactive dusts and all kinds of smoke and aerosols.

They are used for constant climate precision measurement
or calibrating rooms, special clean air laboratories,
operating theatres, sterilization rooms, and clean rooms.

The article Removing Particles from Air-Conditioning Systems was Submitted by Thomas Yoon through Articles.GetACoder.com network. Here's the additional information: Many years of working experience in Mrine, Facilities, Construction has given the uthor material for writing e-books and rticles related to engineering, and management. Subscribe to facworld ezine More information at Marine Engineer and M & E Engineer

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