To clean airpurifier filter follow this four step
1.Remove filter from airpurifier
2.Blow dry air on airpurifier filter with dryer
3.Wash with mild warm water with mild soap or liquid
4.Put air purifier filter on dry surface for 1 hour then put it back in airpurifier.
This simple step help full to clean airpurifier filter.
Some time hair fiber cotton fiber thred fiber are stick to filter surface that time you work hard to remove them but suggestion is if you using filter since 1 year please replace it to get better air filter result. It is necessary for you health.