Does Siemens do clean air conditioning? How much can Robert, Webster and Echo's purified air conditioners be more expensive than domestic Tianjia respectively?

There is no comparability, because the scores of Tianjia and Robert, Webster and Echo are too different. If you have to have a data, you can refer to the imported and domestic prices of cars. If you have to have a data, you can look at the following, but it is not necessarily accurate. 1, if yes, does anyone know that Siemens does clean air conditioning? Why can't I find this information on the Internet? A: Siemens doesn't do clean air conditioning. 2. Who knows how much more expensive Robert's clean air conditioning unit can be than domestic (such as Tianjia)? Just want a rough figure. A: Estimated 3-4 times. 3. How much can Webster's purification air conditioning unit be more expensive if it is made in China (such as Tianjia)? Just want a rough figure. A: Webster is more expensive than Robert. 4. Which is more expensive, Eco Clean Air Conditioning or Tianjia? A: Think with your toes, and you'll come up with it. It must be that echo is very expensive! One is a German brand, and the other is not even high-end in China. Echo's products are not a little better than Tianjia's, but far from Tianjia's.