You only have to look at the difference between fresh and used record cleaning fluid to see how much grime is lifted by our process:
The jar on the left contains brand new record cleaning fluid, while the right contains the same fluid after it has been used to clean a batch of records.
The opaque yellow/brown colour is caused by all of the suspended contaminants; things like old tobacco smoke, dried skin cells and fungal growth.
Electron microscope image showing a record groove that could use some cleaning
The removal of all these contaminants has a dramatic effect on the fidelity of records: Dynamic range is widened, detail retrieval is sharpened, texture and tone is richer.
You can see evidence of these improvements in the below graphs. The one on the left represents a passage of music played from a dirty record, the one on the right shows the same passage after the record has been cleaned. The spikes causing noise that veils the music have been removed.
