What harm does air freshener do to people?

Air fresheners actually cover up the odor, but they can't eliminate it fundamentally. Therefore, when they are released into the air, they are pollutants, which will produce harmful substances after their own decomposition. Moreover, some air fresheners also contain some impurities, which are also substances that pollute the environment.

Second, produce allergies.

The ingredients contained in the air freshener are all organic substances, most of which will cause allergies and have some strong stimulation to the respiratory tract, especially for some people with allergies or allergies.

Third, lead to serious diseases.

Aromatic substances contained in air fresheners can stimulate people's nervous system and affect children's growth and development. The European Consumers Association found through investigation that air fresheners can even induce diseases such as cancer.

Matters needing attention

Experts pointed out that the use of air fresheners should pay attention to the following points:

1, indoor infants, patients with asthma, allergic constitution and allergic diseases should be used with caution.

2. When spraying or igniting the air freshener, it is best to leave the site temporarily and wait until most of the aerosols or particles settle before entering. Before entering, it is best to open the doors and windows for ventilation.

3. Gas air freshener should be selected for deodorization in toilets and bathrooms.

4, can't rely too much on air fresheners, should fundamentally find out the cause of the stench and thoroughly remove, make the indoor air really fresh.

Experts also pointed out that chemicals such as 84 disinfectant and air freshener should be avoided at home. If there are no patients with respiratory infectious diseases indoors, it is generally not necessary to disinfect the air frequently.

Correct air disinfection method

1, natural ventilation method: No matter how cold the weather is, open the window for ventilation for a period of time every day. The best time is around 9 am and 3 pm, and general ventilation needs 10 ~ 30 minutes.

2. Ultraviolet irradiation method: When no one is around, a 30-watt low ozone ultraviolet lamp can be installed in each room (about 15 square meter) to irradiate for more than 1 hour, which can kill 90% of pathogenic microorganisms in indoor air.

3, vinegar disinfection method: vinegar contains a variety of ingredients such as acetic acid, which has a certain bactericidal ability and can be used as indoor air disinfection in the family. You can use 100 ~150g vinegar per100 square meter. Add 2 times of water, put it in a bowl and steam for 30 minutes. When boiling fumigation, it is best to close the doors and windows. Fumigation 1 ~ 2 times a day for 3 days.

4. Disinfection method of the moxa stick: You can also light the moxa stick after closing the doors and windows, and use 1 moxa stick every 25m2. After half an hour, open the doors and windows for ventilation.

fundamental principle

Odor control is solved by five mechanisms:

1, adsorption: zeolite, activated carbon, silica gel and other adsorbents can be used to remove odor.

2. Oxidation: Ozone, hydrogen peroxide, hydrogen peroxide, chlorine, chlorate and other oxidants can be used to oxidize and remove organic sources of surface odor, and in the case of ozone, they can also be removed from the air.

3. Air disinfectant: The odor generated by bacterial activities in the air can be removed by air disinfectant that inactivates bacteria.

4. Surfactants and soaps

5. Masking: One smell and another smell are submerged by any of the above methods.

The delivery mechanism of the air freshener can be divided into two categories: continuous action and immediate action.

Products with continuous function include scented candles, devices that use candle flame or other heat sources to heat and evaporate essence formulas, incense burners, and wall-mounted plug-ins that use piezoelectric technology to atomize essence or heat and evaporate essence. Gel impregnated with perfume sometimes releases fragrance with the evaporation of gel with the help of electric fan, wick and reed diffuser, while the latter releases fragrance through the evaporation of wick or wooden reed soaked with fragrance.

And perfume impregnated materials impregnated with floor wax, paper, plastic and wood, which will release perfume through deflation; ? Finally, the atomization system, which can convert liquid spices into steam in the cold process without heating.

Quick-acting system is mainly sprayer or atomizer. Aerosol spray is packed in a sealed metal or glass container under the pressure of propellant and perfume. The container contains a valve actuator, and the nozzle can be opened by pressing a button. When the valve of the container is opened by pressing the actuator, the fragrance is forced to pass through a nozzle located inside the actuator to generate a mist droplet containing the fragrance. These droplets have a diameter of 30 to 50 microns.

The atomizer is glass, and the metal or plastic container works in a similar way, except that the actuator is a pump. When the pump is pressed several times, pressure will be generated to suck the essence in the container into the actuator and nozzle through the tube. The generated mist contains droplets with a diameter of 50 to 150 micron. A recently developed aerosol packs plastic bags into cans.

The bag is fixed on the valve/actuator/nozzle and sealed in a tank surrounded by pressurized air. When the actuator is pressed, the valve opens and the liquid is forced through the nozzle due to the pressure around the bag. This is called "bag on valve" technology.

Refer to the above? Baidu encyclopedia-air freshener