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How to determine whether there is room methanol
First and foremost is to see the performance will
have a pungent taste, and if still not assured, then do testing to
find an agency to do some testing formaldehyde content. Formaldehyde
standard state 0.1mg / m³ The following will not cause harm to
humans
Formaldehyde is a colorless, irritating gases and
soluble in water. It has the role of the protein coagulation, a 35%
to 40% aqueous solution known as formalin, often as a dipping
solution specimen. Formaldehyde is a higher toxic substances, toxic
chemicals in our country on the list of priority control
formaldehyde ranked second.
When the room temperature to 30 ℃, indoor relative humidity at 45%,
the release of formaldehyde in the air concentration of 0.223 mg /
cubic meter, exceeding the national "Indoor air quality standard"
2.23 times; room temperature to 34 ℃, relative humidity at 50%, the
release of formaldehyde concentrations exceeding the standard
5.53-fold; two files at room temperature in 18 ℃, relative humidity
of 30% formaldehyde in the air concentration of only 0.033 release
mg / cubic meter, far below the national standard.
Renovated room should be ventilated loose flavor, good air purifier
to need at least five to ten days before admission. This is our
consensus. Most people think that after renovation stay before all
the room windows are open, the longer, the more it can eliminate the
decoration pollution. But experts said that this is a
misunderstanding.
In general, formaldehyde and other harmful substances in the 15 to
20 degrees Celsius, the fastest release. Cold winters, if prolonged
ventilation, the indoor temperature naturally low in harmful
substances still retained decoration materials, there is no much
effect. Song Guangsheng suggested that consumers can put the windows
shut, the house heated to 20 to 25 degrees Celsius, for 1 to 2 days,
WINDOW 1 to 2 hours. Repeat, this approach is most effective for the
elimination of indoor pollution. And in the winter, in general,
10:00 to 15:00 between the ventilation is most effective.
If the room has new air system, you can heat exchange system, while
maintaining the indoor temperature, and can filter out the outdoor
exhaust pollution, dust pollution, but also be able to change a
polluted indoor air to the outdoors, keep indoor air purification.
However, this system needs to synchronize with the renovation. And
some well designed installed after the ventilation windows, through
the automatic ventilation, oxygen can be kept indoors, but also the
elimination of indoor air pollution to a certain extent.
Ten Mistakes about formaldehyde
Myth one: no smell, no formaldehyde?
Indoor Short did not smell, does not mean formaldehyde standards.
2-3 times the formaldehyde smell obvious odor, it is also likely
masked by other odors. Formaldehyde is extremely difficult to
evaporate, the time up to 3-15 years.
Myth: ventilation can be in addition to formaldehyde?
Average family room windows more than a meter off the ground,
formaldehyde heavier than air, easy precipitation, even if
formaldehyde is still hard to clear the windows open for
ventilation. Furthermore the majority of the slow release of harmful
substances, as long as 3-15 years, not months, ventilation will be
able to solve the problem.
Myth: Green decoration no contaminated?
China Building Decoration Association Reminder: use environmentally
friendly building materials to help reduce indoor harmful gas, but
even if all use environmentally friendly building materials
resulting air quality will be exceeded. Because most environmentally
friendly building materials only content of harmful substances,
there are also distributing gas falls below a certain standard, not
simply contain harmful substances, do not emit harmful gases, plus
decoration design, bedroom structure, ventilation conditions and
other factors, as harmful gases additive effect, still can not
guarantee the quality of indoor air after decoration bedroom can
target.
Myth: plants can absorb formaldehyde?
Many people hope spider plants in addition to formaldehyde, aloe
vera and other plants to absorb. But Beijing Botanical Garden, Dr.
Zhao Shiwei, vice principal, said some publicity overestimate its
actual role in plant respiration capacity is quite limited, usually
micrograms (millionths of a gram) of formaldehyde level. If the room
formaldehyde, Xu placed thousands of pots of plants to continuous
light from a certain effect.
Myth: trust scavenger addition to pollution?
Formaldehyde scavenger is done by brushing, painting, spraying, etc.
covering the walls floors and other surfaces. However, this
substance can only slow down the release of formaldehyde, can not
get rid of clean, also the consumables, over time it will lapse.
Another formaldehyde scavenger prone walls discoloration, blistering
furniture, wallpaper blistering and other issues, thereby
undermining the decoration.
Myth: activated carbon in addition to formaldehyde?
Many people think of using charcoal, activated carbon to absorb
formaldehyde, the current principle purifier with activated carbon
is also very much, the mechanism is activated carbon to absorb
formaldehyde. However, this method does not decompose formaldehyde,
only temporarily capture. When the temperature rises, adsorption
saturation, it will again release formaldehyde to form secondary
pollution.
Myth Seven: Fumigation vinegar can remove formaldehyde?
Consumers have tried fumigation vinegar odor removal home
decoration. Experts pointed out that vinegar is acidic substances,
weak and in the role of ammonia in the air, but it will not and
formaldehyde and other harmful ingredients react. Therefore this
method in addition to formaldehyde and undesirable.
Myth Eight: Place pineapple
Some owners try to put a few in each room pineapple, that can
eliminate the odor of paint, large rooms and even put some more.
Pineapple will be volatile aroma, play a role in covering the smell,
but did not remove the harmful substances decompose; another
Pineapple contains a lot of moisture, volatile after humidification
play, you can play formaldehyde and other harmful substances
dissolve effect, and once dry, Formaldehyde will they evaporate.
This is definitely deceiving.
Myth 9: Place tea root
Some people place the tea room in the closet and after root dry tea
leaves, hoping to help clear the poison, not knowing the root tea
efficacy in this regard is like dry leaves and toilet paper, almost
no absorption and decomposition
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