Daikin VAM-FA8VE Technical Data Manual page 254

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• HRV • VKM-GA(M)V1
Tobacco
Only one cigarette can soon pollute the air in the enclosed room. And both the smoker and other non-
smokers staying here are affected. Especially the "secondhand" smoke from the tip of cigarette contains
2~3 times larger amount of harmful substances (nicotine and tar) than the "main smoke" exhaled by the
smoker, so that the non-smokers around the smoker can be affected by tobacco smoke.
So, tobacco smoke is one of the serious causes of interior air pollution. Tobacco smoke consists mainly of
mists such as tar and nicotine, gases such as carbon monoxide (CO), carbon dioxide (CO
various hydrocarbons including methane, and traces of hydrogen cyanide, formaldehyde, acrolein,
ammonia and nitrogen oxides (NOx), so that various human health problems including lung cancer, chronic
CO toxication and bronchitis can occur.
New ceilings, walls, furniture and decorations in white will turn into yellow in one or two years. This is due to
the nicotine and tar contained in tobacco smoke, and/or dust in the air.
To allow smoking, proper ventilation is inevitable. A ventilation system consisting of an air cleaner and
ventilator that operates automatically detecting the level of pollution is recommendable. This system can be
associated with an air conditioning system, so that power consumption for these systems can be reduced,
and so that they can enjoy comfortable smoking without feeling hot or cold.
Table 3 Sensation for Tobacco Smoke
Smoke concentration
3
(mg/m )
0.15
0.44
0.78
0.95
1.13
1.26
1.48
1.73
1.95
Table 4 Air Pollutants per Cigarette (when smoking)
Type NOx (cc)
0.90
Seven Stars 0.57
0.77
Table 5 Air Pollutants per Cigarette (when a lit cigarette is left)
Type NOx (cc)
Seven Stars 1.26
Carbon monoxide (CO)
Carbon monoxide is colorless, odorless and very toxic gas. Imperfect combustion of briquette, charcoal or
oil produces CO gases. Tobacco smoke and automobile exhaust gases also contain CO gases.
CO gases inhaled into the lung join together with hemoglobin in the blood, which result in preventing the
bonding between oxygen and hemoglobin, leading to inability to convey oxygen to the tissues of the human
body. The bonding force between CO and hemoglobin is 200 ~ 300 times larger than that between oxygen
and hemoglobin.
A typical symptom is headache. The motor of their limbs is anaesthetized before losing consciousness, so
that they cannot escape away from the place, which may, in the worst case, lead to fatal accident. Inhaling
CO gases repeatedly may lead to chronic poisoning, with short memory, or in the worst case, he (she) is
crippled for life.
The normal atmosphere contains about 21% of oxygen. Combusting the air will reduce the oxygen
concentration. When it reduces to 19%, CO concentration starts to increase quickly. This quick increase in
CO concentration occurs earlier with the lower combustion rate. This is a reason for larger number of CO
poisoning accidents due to imperfect combustion. During combustion, using both exhaust ventilation and
supply of fresh air is preferable.
• HRV • Heat Reclaim Ventilation
Status of the air in the room
Smoke diffuses in 6 to 30 seconds.
Slightly smoky
Slightly smoky
Blurred sight
Blurred sight
Heavily smoky
Heavily smoky
Heavily smoky
Heavily smoky
CO (cc) DUST (mg)
72 12.6
38 7.7
68 11.3
CO (cc) DUST (mg)
45 6.3
), hydrogen and
2
Sensation
Slight odor
Odor
Feel strange in the nose and/or throat
Strong odor
Slight eye irritation
Nose and throat irritation
Slight pain of eyes
Pain of nose and throat
Slight tears
Fig 1 Three-Year-Old Child Asthmatic
Bronchitis Due to Passive Smoking
5
4
3.4%
2.8%
3
2 1.7%
1
0
0 1 to 20 More than 20
cigarettes cigarettes
per day per day