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NFC Sticker for Xiaomi Air Purifier: "This sticker will be read by the Air Purifier as an original filter!"
https://www.tindie.com/products/theflamingo/10x-xiaomi-air-purifier-new-filter-nfc-sticker/
NFC Sticker for Xiaomi Air Purifier: "This sticker will be read by the Air Purifier as an original filter!"
https://www.tindie.com/products/theflamingo/10x-xiaomi-air-purifier-new-filter-nfc-sticker/
@lupyuen
I'm not sure if you are promoting this or commenting on absurd manufacturer's attempts at consumable lock-ins, but here's a cheap DYI room air filter that I've been using for over a decade.
https://www.youtube.com/watch?v=qtaf1jTQThc