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Air systems treatment guidelines
Aeraulic duct section
VENTILATION
AND AIR CONDITIONING AIR DISTRIBUTION
1 2 3 4
1 The deposits are composed predominantly of organic material
2 Favourable microclimatic conditions (temperature and high relative humidity)
3 Ideal growth medium for various fungal and bacterial species and microorganisms (mites)
4 The air distribution system promotes the transport of dust and microorganisms to confined environments
Indoor pollution - the effects
From statistical surveys carried out on a sample of 112 buildings*
in North Italy, it was found that:
65% of the ducts are contaminated
65% of systems do not provide adequate air exchange
In 35% of the sampled buildings, allergy problems were found
10% of the sampled buildings are infected with pathological bacteria
In 8% of the buildings sampled were detected particles
of glass fibres in the air
In 4% of the buildings sampled was detected in the air monoxide
of carbon produced by vehicle traffic
Systems inspected by type Sanitary suitability
of sector of facilities
5%
11% Food SUITABLE
systems
31% Hotel
Sale NON SUITABLE
Industry systems
37%
Hospital
16%
*Studies conducted by independent bodies
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