Disinfectent solution

How frequency do we need to change disinfection to clean GMP area. Please share to me related chapters.

Steris recommends monthly rotation

it should be based on validation. most pharma company follows weekly rotation.it is necessary to prevent resistance build up in bacteria.

Agree with @ Manoj Sir this depends upon validation studies. Mostly pharmaceutical industry having practice on weekly basis.

weekly rotation and same day use prefer.

first week IPA
second week Savlon
than Dettol