How do you keep your mechanical keyboard clean and free of dust especially if your area has a lot of air pollution

I live in Mumbai where the average AQI is 150+ for most days of the year, which results in a lot of dust accumulation on my desk and especially my mechanical keyboard.

I have a cosmic byte firefly CB-GK-16 with blue switches, it attracts so much dust and the keys become sluggish after some days so I have to regularly open the keyboard and also give the keys a nice warm water treatment with soap.

Earlier I used to do this once a month but this is needed every week.

Need some suggestions on how to prevent dust build up on the keyboard