Description: Tototek car purifier have conpact size.it can Actively non-dead-angle disinfection, sterilization spectrum; No by-products after disinfection; No other consumables for disinfection, very low cost of use; Human and machine coexistence, real-time 24-hour disinfection Disinfection can also deal with odors in the car, decomposition of formaldehyde, VOC in the car space, etc. Harmful materials. Sources of Air Pollution in a Car There are many reasons for poor air quality in a vehicle. Some were mentioned above and here is a list of the most common sources of pollution you may encounter.Odors Cigarette smoke Carbon Monoxide and exhaust fumes from other cars Carbon Dioxide Pet Dander Particulate matter like dust, mold, pollen and bacteria Most of the items in this list are gases (the first four). Gases are difficult to remove with an air purifier since they are incredibly small and require advanced gas filter media. We go into detail in our comprehensive air purifier guide for how to effectively remove them. The pet dander, dust and pollen are airborne particulates and larger than gases. To remove them you need a HEPA air filter as the solutions for gas removal are not effective. Particulate matter is best captured in a net like the fibers of a HEPA filter. Gases in contrast are often adsorbed into a material like activated carbon. So, from an air purifier perspective it depends upon what you need the air cleaner to do before you can identify the best solution. Strategies to Clean the Air There are 3 main strategies to clean the air in any environment. This applies to a home, the office or in a vehicle. 鈥?Source control 鈥?remove the source of the issue. In a car this can be difficult since you don't have a choice but to drive on the road. 鈥?Ventilation 鈥?this is achieved by circulating air from the outside or by rolling down the windows. Again, this can be difficult depending upon the weather conditions or pollution on the roads. 鈥?Air Cleaning 鈥?using an air filter to remove the pollutants. This list is sorted in the order of importance. So, source control is the first choice, followed by ventilation and then air cleaning. Purpose of Your Car's Air Filter Cars come with an air filter. What is interesting is that the purpose is the same as the air filter in your air conditioning or furnace heating system. And that is to protect the equipment and not your health. In most cases this is a low efficiency pleated filter. This means it will filter out the larger particles only which is most important in maintaining the operation of your vehicle. The same issue exists with your HVAC filter in that the fans are not strong enough to pull air through a higher efficiency filter. So, your car air filter will only remove the biggest pollen or dust particles. And not the finer particles that you breathe into your lungs. Furthermore, imagine if you wanted to remove fumes and emissions from vehicle exhaust. In other words, the gases we listed above. This issue is even harder since a bank of carbon has more air flow resistance and therefore requires a stronger fan to pull the air through. We looked at developing a better filter that could be placed in a car however we determined this was not practical since the fans in a car are just not strong enough. The result would be much lower air flow. This would create a strain on the fan as well as poorer performance in the air conditioning. So, it's a difficult problem to solve given the limitations. In addition, it takes a good amount of energy to move air through a filter that is effective and there is not a lot of power in a cigarette lighter adaptor. And this leads us to the current car air purifier solutions. Tototek Group provide OEM and ODM service.Air Clearer manufacturer website:http://www.tototekgroup.com/air-purifier/air-clearer/