Rated frequency 50 HZ, Application area 41㎡-60㎡, Power mode AC.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Wall Mounted Efficient Integrated Purifier Filter Replacement For Xiaomi Smartmi XFXT01ZM Air Purifier Fresh Air Cleaning System | $36.87 | – |
Click here to search by yourself. Here are coupons that you can use.
Updated:
Banggood
Warehouse in China.
Link: Xiaomi Smartmi Wall-Mounted Air Purifier
$379.74 with coupon: 7bcdf9
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Smartmi Wall-Mounted Air Purifier. The lowest price was: $294.99.
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)).