Chimneys with filters need frequent maintenance — you will have to either clean them yourself or hire a professional. If you want a low-maintenance chimney, you can buy a filterless chimney.
Filtered chimney - pros and cons
Pros-
● Ideal for Indian style cooking kitchen
Cons-
● Needs to be manually cleaned
● Not as light as other filters
● Produces excess noise
Filterless chimney - pros and cons
Pros-
● No chimney cleaning hassle
● Almost zero maintenance costs
● Minimal noise production
Cons-
● Relatively expensive.
A filterless chimney is a better option as it reduces efforts to be put into cleaning than filter chimneys that need to be cleaned manually.