Original Green Xiaomi Mi Air Purifier 2 Filter Enhanced Version (Banggood, Aliexpress: organic matter, bacteria, The filtering coverage area: 33 square meters The filter can remove 99.99 percent of PM2.5 particles, etc. Recommend replacing cycle: 3 – 6 months, heavy metal (the best price with coupon)).
Just check coupons out (with price alert and history). Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($93.50): 8Couponsde
2. ($93.50): MVC8SPRING
3. ($95.53): BG00c906
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BGair1S, bgchinafest, BGnowyfiltr, BGBFAFF2019, BGCITYADS2019, BGHOMEAPP, BGMPB2020, bGhOnEy10, BGAFF7OFF, BGSS10%SW, bgshOOp10, BGXMfilterS1, BGHome15%, BGHOMEAPP12, BGS1XMCZ, BG9XMfilterS1, BGHOMEAPP13, BGXMS1CZ, BGXMFLS1, BGHOMEA13, BGMJAP11, BGS1APFCZ, BGXMS1FLCZ, 13f142, BGAPEHGD, BG10OFFAFF, BGwhielabel, BG6a088e, BG2dd9ee, BG10OFFAFF1, BANGGOODSD, BG9dc3df, 00c906
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Original Green Xiaomi Mi Air Purifier 2 Filter Enhanced Version [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Original Green Xiaomi Mi Air Purifier 2 Filter Enhanced Version? There we go. The lowest price was: $23.99.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).