Does Normal Impregnated Activated Charcoal really work for odors?

The microstructure of impregnated activated carbon is the basis of its deodorizing function. The surface of impregnated activated carbon has a large number of micropores and a large specific surface area. The developed voids can adsorb gas molecules and fix them inside. In the adsorption process, activated carbon deodorizes mainly through two methods: physical adsorption and chemical adsorption:

How do Normal Impregnated Activated Charcoal odor absorbers work to eliminate smells?

Physical adsorption: Impregnated Activated carbon adsorbs odor molecules in the air through its surface and pores. This impregnated activated charcoal for odor absorption is non-chemically reactive, and the molecules are just physically “absorbed”.

Chemical adsorption is through the functional groups on the surface of impregnated activated carbon that react chemically with odor molecules to form stable chemical bonds, thereby removing these gases. For example, impregnated activated carbon can adsorb harmful gases such as hydrogen sulfide and ammonia.

Normal brand's used Impregnated Activated Carbon treated with metal oxides like Copper Oxide (CuO) + Manganese Dioxide (MnO₂) + Potassium Permanganate (KMnO₄).These 3 metal oxides can only removes limited toxic gases like Sulfer Dioxide(SO2), Formaldehyde(CH2O), TVOCs, Ammonia(NH3), Nitrogen dioxide(NO2), Carbon Monoxide(CO) inside the cars.And only last for 3 months.

The Main Components Of Odor Includes: 

When Normal Condition (Good Odor) Food Items (non veg & veg); These gases are not harmful for health.

  • Sulfur Volatiles: (e.g., 2-methyl-3-furanthiol (meaty, brothy) and 2-furfurylthiol (roasty, caramel), formed from Maillard reactions involving amino acids, sugars, and thiamine degradation.
  • Aldehydes: (e.g., hexanal,,octanal, nonanal for green/fatty/oily/meaty notes)
  • Pyrazines: (e.g., 2-ethyl-3-methoxypyrazine) deliver nutty, earthy, roasted undertones.

When Decomposing (Bad Odor); Normal Conditions,We Cant Meet These Smells Inside The Cars.

  • Amines (NH₂): These organic compounds, like cadaverine and putrescine, are responsible for the rotten smell associated with spoiled meat.
  • Ammonia (NH₃): Produced during protein degradation, ammonia contributes to the pungent odor of spoiled food and also usually produced by the decomposition of nitrogen-containing organic matter (such as urea, protein, etc.).
  • Hydrogen Sulfide (H₂S): This gas is notorious for its rotten egg smell and is produced by the breakdown of sulfur-containing amino acids.
  • Carbon Dioxide(CO₂): Produced during carbohydrate fermentation, this gas can cause bloating or swelling in packaged foods.
  • Hydrogen (H₂) and Methane (CH4): These gases are produced during protein putrefaction and can contribute to the overall foul odor of spoiled food.

Texture Breakdown:

As food spoils, its texture can change dramatically. This is often due to the breakdown of structural components like proteins, carbohydrates, and lipids.

  • Softening: Enzymes and microbial activity can break down the cell walls in fruits and vegetables, leading to a mushy texture.
  • Slime formation: Some bacteria produce extracellular polysaccharides, resulting in a slimy texture on the surface of spoiled food.
  • Drying out: Spoilage can also cause food to lose moisture, leading to a dry or leathery texture.

Preservatives can inhibit microbial growth and delay spoilage.

All food items contains preservatives and we will not keep the food items till decompose inside the cars.

Common preservatives include:

  • Salt: Salt draws out moisture and creates an inhospitable environment for microbes. It’s commonly used in curing meats and pickling vegetables.
  • Sugar: High concentrations of sugar can also inhibit microbial growth by reducing water activity. This is why jams and jellies have a long shelf life.
  • Acids: Acids like vinegar (acetic acid) and citric acid lower the pH of food, making it less favorable for microbial growth. They are often used in pickling and preserving fruits.
  • Artificial preservatives: Compounds like sodium benzoate, potassium sorbate, and sulfites are added to various foods to extend their shelf life by inhibiting microbial activity.

Conclusion : How normal brand's impregnated activated charcoal odor absorbers work to eliminate smells?

Normal brand's used Impregnated Activated Carbon treated with metal oxides like Copper Oxide (CuO) + Manganese Dioxide (MnO₂) + Potassium Permanganate (KMnO₄).These 3 metal oxides can only removes limited toxic gases like Sulfer Dioxide(SO2), Formaldehyde(CH2O), TVOCs, Ammonia(NH3), Nitrogen dioxide(NO2), Carbon Monoxide(CO) inside the cars.And only last for 3 months.