Disposable pads are made using polymers that have high absorption capacity. Polymers are designed with a focus on moisture absorbing properties, this means that disposable pads have a tendency to get stuffy and are prone to breeding bacteria. Also, the smell you experience when using disposable pads comes from the reaction between the blood and the chemicals in the disposable pads. This is also why disposable pads are heavily scented with artificial fragrances.
hannahpad cloth pads are made of breathable organic cotton that can absorb and suppress bacterial growth. The cotton used in hannahpads are 100% certified organic, unbleached and undyed, there are no chemicals hence you would not experience any smell when using hannahpad cloth pads.