Air fresheners generally only have a covering and shielding effect, without removing or decomposing various pollutants in the air. However, in recent years, air purifiers have emerged that can remove or even decompose various pollutants through chemical or physical reactions or a combination of chemical and physical reactions, thereby achieving the goal of purifying the air.

Air fresheners actually release essence to the room through various ways, playing a role in driving away the foul air odor, refreshing and refreshing. Strictly speaking, they are not cleaning detergents. They only change our sense of smell through essence molecules and regulate neural function. Choosing such products must be based on one's own preferences, and different fragrance types should be selected according to different rooms. In short, it is to cover up the odor in the room with essence.

At present, there are many types of air fresheners on the market, which can be divided into aerosols, solids, liquids, electric fragrances, etc. according to the form of the products.

The general composition of solid air freshener is: essence, surfactant, carrier (gel, resin or activated carbon, etc.), water, etc.

Liquid air freshener is mainly composed of essence, surfactant, water, etc.

Aerosol air fresheners are mainly composed of essence, alcohol, water, emulsifier and propellant.

Disease analysis: Air fresheners have certain damage to the human body. The air freshener contains a certain amount of essence, fragrance, ethanol, deionized water and other chemical components, which can mask the original odor by releasing fragrance, but has no effect on air purification, and even further aggravates air pollution. Secondly, these chemical components can stimulate the nervous system and cause certain harm, especially for pregnant women. Long term exposure to air fresheners may have adverse effects on the fetus. Families with children, asthma, and allergies should avoid using air fresheners. It is recommended to open windows for natural ventilation as much as possible to optimize the air quality.