Absorbent pad cleaning is used for in-between deep cleanings.
It is an inexpensive and simple method adopted by many because the carpets dry faster and are easy to clean at home.
Most people use this type of cleaning method when the carpets do not look bad but they want them a little cleaner.
If you ask almost any company out there that does not do this type of cleaning they will down it.
You should still get your carpets deep cleaned at least once a year to get all that dirt deep down.
If you are unsure whether to use this process or not, contact the manufacturer of the carpet and ask if this method is approved.
If your carpets are under warranty make sure the process is approved so it will not void the warranty.
If your carpet is not under warranty ensure the company that is cleaning your carpets is insured and bonded.