Soundproof door between units

[Zach Denny]

Hi All,

I have a split entry house with a suit in the lower level. There is a door that separates the two units, but there is still some noise transfer.

In the past I've used this product to provide some acoustic separation, but the company no longer sells it and I haven't found another supplier.

https://www.amazon.ca/Conditioner-Windshield-Waterproof-Soundproof-Panel-Gray/dp/B07L3M8KH5/ref=asc_df_B07L3M8KH5/?tag=googlemobshop-20&linkCode=df0&hvadid=320818873399&hvpos=&hvnetw=g&hvrand=5836728046373078898&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9000112&hvtargid=pla-607946964613&psc=1

Does anyone have a relatively simple and inexpensive product or way of providing acoustic separation for a suit demising door?

Thanks!