In recent years, smog has been a hot topic. People in Beijing said: "Standing in Tiananmen Square, we can't even see Grandpa Mao!" People from the Northeast retorted: "I opened my wallet and took out a hundred yuan Money, you can’t see Grandpa Mao!” In the south, smog is also common. In order to prevent smog, everyone wears masks and installs air purifiers. But how should we prevent smog in the car? Is it necessary to wear a mask while driving? At this time, you need an air conditioning filter with good filtration performance.
1 The function of the cabin air filter
The car cabin filter is a filter specially used for air purification in the car compartment. Generally, filament non-woven fabric is used as the main filter. Filter layer, some filter layers are added with high-efficiency adsorption materials such as activated carbon to achieve better filtration effect. The air conditioning filter mainly filters tiny particles, pollen, bacteria, industrial waste gas, dust, etc. in the air.
In the current automotive supplies market, there are various types of air conditioning filters. Ordinary consumers do not know how to choose when purchasing. The editor below summarizes the 4 main types of air conditioning filters for everyone. Qingqi introduces their respective advantages and disadvantages to facilitate everyone's choice.
Type 1 of 2: Ordinary filter paper type
The filter layer of the ordinary filter paper type is a filter element made of ordinary filter paper or non-woven fabric. It is formed by folding the white filament non-woven fabric into a certain shape. The thickness of the pleats allows for air filtration. Since it does not have other adsorption or filtering materials and only uses non-woven fabrics to simply filter the air, this filter element cannot have a good filtering effect on formaldehyde or PM2.5 particles. The original cabin air filter that most models are equipped with at the factory is this type.
Advantages: low wind resistance, large air conditioning air volume, low price, not easy to breed bacteria and produce odor
Disadvantages: poor filtration effect, cannot resist fine dust, germs, PM2.5 particles and Harmful gases
Sofima cabin filter
3 types 2: activated carbon filter type
Activated carbon filter element is based on the fiber filter layer, adding activated carbon layer to upgrade single-effect filtration to double-effect filtration. The fiber filter layer filters impurities such as smoke and pollen in the air, and the activated carbon layer adsorbs harmful gases such as formaldehyde to achieve double-effect filtration. In addition, due to the adsorption properties of activated carbon, it can also remove odors.
Advantages: double filtration, moisture-proof, odor removal
Disadvantages: relatively small air volume, unable to filter PM2.5 fine particles
Man brand air conditioning filter
Type 3 of 4: HEPA PM2.5 filter type
With the seriousness of haze in the past two years, air purifiers and other "anti-haze tools" have emerged one after another. HEPA is High Efficiency Particulate The abbreviation of Air filter means "High Efficiency Particle Air Filter". The HEPA standard is that the filtration efficiency for particles with a diameter of 0.3 microns (PM0.3) is 99.97%.
Advantages: Good filtering effect on PM2.5
Disadvantages: Poor filtering effect on harmful gases
Universal car air conditioner HEPA PM2.5 filter paper core
>5 types four: composite filter type
HEPA filter is currently the best among all filter materials in filtering PM2.5, but unfortunately, a single HEPA filter can only play a single role. It has a poor filtration effect on harmful gases such as formaldehyde. Since the HEPA filter element and the activated carbon filter element have complementary functions, the composite filter element has emerged. The air enters the HEPA filter paper for particulate filtering, removes PM2.5, and then adsorbs harmful gases through the adsorption of the activated carbon layer, and finally sends clean air into the Air conditioning system.
Advantages: Can filter PM2.5 and harmful gases at the same time
Disadvantages: large wind resistance, affecting the air output, and may even cause a large load on the air conditioner motor
< p>Four types of cabin air filter filtration diagram:MAN cabin air filter
6 Summary
Above, the editor has summarized the current market for you Among the four mainstream air conditioning filters, the composite filter type has the best effect in preventing haze and removing harmful gases. On hazy days, in order to allow yourself and your family to breathe freely in the car, it is time to consider replacing the cabin air filter with better performance.