One of our cats has developed asthma (it's not just humans who suffer from HK's bad air!) and the kit most commonly praised online to treat it is the Aerokat aerosol chamber:

AeroKat* | Trudell Medical International*



But of course I can't find any sign of it here in Hong Kong. Anyone ever come across a local seller or found a reasonable option for buying online and shipping to Hong Kong?

Amazon has it at a decent price, but for some reason it's only available for shipping within the USA (yay!).