Filtration In Several Stages; General Description (Fig. 1) - Philips AC4072 User Manual

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introduction
Congratulations on your purchase and welcome to Philips! To fully benefit
from the support that Philips offers, register your product at www.philips.
com/welcome.
With this new living room air purifier you breathe cleaner air. For the best
results, place the living room air purifier in a room where you spend most
of your time, e.g. the living room.
Wherever there are people, plants or pets, there are airborne particles that
can affect your well-being, especially if you suffer from allergies. Because of
these particles, the air inside a room may be more polluted than the air in
a large city.
Normally, particles are invisible and odourless. Nevertheless they can affect
your health. The living room air purifier reduces the amount of animal
dander and industrial pollutants in the air, and therefore improves the
air quality. It also filters out ultrafine particles larger than 20 nanometres,
including bacteria and some viruses. According to publications of the
World Health Organization, the avian and human influenza viruses and the
Legionella bacterium are larger than 20 nanometres.

Filtration in several stages

The living room air purifier has a unique multi-stage filtration system that
ensures the best air quality:
- Stage 1: The pre-filter has been treated with antibacterial substances. It
catches big particles like human hair, pet hair etc.
- Stage 2: The formaldehyde filter (supplied with AC4074) filters out
formaldehyde and other volatile organic compounds (VOCs). In
combination with the HEPA filter, the multi-care filter filters out dust,
pollen and ultrafine particles larger than 20 nanometres, including
bacteria and some viruses. According to publications of the World
Health Organization, the avian and human influenza viruses and
Legionella bacterium are larger than 20 nanometres.
Note: The AC4074 and AC4072 are suitable for both the formaldehyde filter
and the multi-care filter. When you replace the filter present in your type, you
can choose the filter (formaldehyde or multi-care) that suits your needs best.
- Stage 3: The activated carbon filter filters out odours and harmful gases
effectively.
- Stage 4: The high-performance composite HEPA filter with anti-
bacterial coating effectively filters out fine dust and cigarette smoke,
while the antibacterial and anti-mould functions of organic antibacterial
materials filters out germs and mould.

general description (Fig. 1)

A Air quality light ring
B Fan speed indicator (AC4074 only)
C Air quality sensor outlet
D Air quality sensor
E
Air quality sensor inlet
F Handle
G Air outlet
H Air inlet
I Cord storage facility
J
Mains cord