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Disaster from air fresheners! Monitoring records after fire

 Recently, Henan Changyuan a KTV fire, cause of the fire was actually caused his heater baking freshener deflagration. This led to a new awareness of the common air fresheners. Are really fresh air freshener?

December 15, 2014 morning, Henan Province Changyuan Crown KTV fire, killing 11 people were killed and 24 people were injured, cause of the fire was actually caused his heater baking freshener deflagration. Surveillance video shows that even the explosion nearly 10 times within one minute air fresheners. This led to people's daily use of the new understanding of air fresheners.

Air fresheners only will explode, but also toxic

If not Changyuan fire, few people thought would be an air freshener inflammable and explosive materials. Henan Academy of Sciences researcher Chen Rongfeng introduction, in fact, is a liquid air freshener aerosol propellants which is also known as propellants, including non-flammable and flammable categories. The former is a fluorine hydrocarbons (such as Freon), which is a lower saturation hydrocarbons (propane, butane, etc.) and ether (DME). Moreover, also the use of compressed gas to increase the pressure in the aerosol container products. Abroad also nitrogen, carbon dioxide, nitrogen oxide gas, etc. instead of low propellant products. Because many substances containing flammable liquid aerosols and sprays, both in the production, transport and use, are likely to explode. Depending on the ignition, the aerosols and sprays can be divided into non-flammable, flame resistance, micro-flammable, combustible and weak and strong flammable five grades. Some countries clearly defined, and the sale of such aerosol sprays, must indicate the danger level.

In fact, not only will explode also toxic air freshener, which is very few people know

In real life, many families in order to prevent the occurrence of contamination of air room, often with a "sweet" to deodorant. Judging from the name, it should make the air freshener to clean, fresh smell. In fact, air fresheners misnomer, it is masked by the scent odor.

Many air fresheners market style, both spray, but also volatile solids and liquids volatile; a lot of flavor, from a single floral (jasmine, rose, osmanthus, bell orchid, gardenia, lily, etc.) , complex flavor to the fruit and flavor (apple, pineapple, lemon, melon, etc.), grass flavor, "coast" flavor, "perfume" flavor (chypre) and so forth. In addition to the product description "Nature Air," as described, some products have also emphasized to formaldehyde effect.

In fact, no matter what kind of air freshener, all without external ether, fragrance and other ingredients, canned products also joined the propane, butane, dimethyl ether and other chemicals. Chenrong Feng said that as the 20th century began to be used in the field of environmental health a chemical product, can only use this air freshener fragrance to diffuse through the eruption temporarily mask unpleasant odor, but can not really improve air quality because of its composition can not decomposition of harmful gases, not truly fresh air. And after inhaled volatile solvents with some fragrant gases quickly attract and invade the nervous system, gives rise to "calm" feeling.

Actual air freshener to mask the smell

Expert analysis of drug dependence, and central nervous system depressants such efficacy similar to those experienced when sniffing a certain feeling, it will produce psychological dependence. Addicts choose their favorite solvent, mandatory daily rebreathing, the results lead to chronic poisoning. Like pen oil and paint solvent scavenger, aplastic anemia, dyspepsia, hematuria, hepatomegaly culprit, they can even cause cancer.

The study found that formaldehyde is soluble in water, once the water evaporates, the formaldehyde is gradually released into the air. Therefore, the removal of water to formaldehyde is only temporary. But some air freshener after spraying indoors, indoor formaldehyde concentrations declined significantly than water and lasting. Similar to other air fresheners inorganic pollutants (ammonia, sulfur dioxide, hydrogen sulfide) purifying effect with formaldehyde, but for most organic pollutants (benzene, xylenes) almost no purification.

Air fresheners can also cause secondary pollution

Back in September 2012, Chinese experts on the adoption of the common market of air fresheners were detected, most air fresheners, more than 40% of the ingredients are terpenoids, and these compounds react with ozone in the air generate formaldehyde and ultrafine particle size less than 0.1 micron particles (PM0.1).

Experts point out that air fresheners are actually covered up the smell, not from fundamentally eliminate odors, it is released into the air, is itself a pollutant in the removal of a pollutant or less while introducing new contaminants (such as Freon, etc.). More seriously, it has been found that BTEX (such as benzene, toluene, etc.) in the air freshener. Therefore, unless special needs, advised residents for safety reasons, to minimize the use of air fresheners.

Indoor or car air freshener with caution

Experts suggest that a correct understanding of the role of the public and the possible harm air freshener. In the summer and autumn sunshine strong, easy to generate ozone season, non-necessary Try not to use air freshener. Even necessary to use air fresheners should also be aware of the following four points:

(1) indoor or infant car there, when people with asthma, allergies and allergic diseases should be used with caution;

(2) spray air freshener or ignite, it is best to temporarily withdraw from the scene, to be most aerosol or particulate matter before settling into the room, open the doors and windows for ventilation before entering;

(3) for the toilet and bathroom deodorant, air fresheners gas should be used;

(4) If you find the car smell, car owners should go to the beauty shop for disinfection and odor. Driving a new car within six months should always open the window ventilation to release harmful gases inside the car.

Can I use an air freshener in the end? Experts emphasized, does not think the market all the air fresheners have toxic effects. He just suggested that indoor air or car, if not a great sensory discomfort, the proposal should be used with caution air freshener. If you select the more well-known brand of air fresheners, the ingredients are extracted from natural plants, CFC-free, perhaps some reliable.