Gather your supplies. You wont require the disc from the lid.
Measure out the screen by sizing with the mouth of the jar, cut it to size.
Install it into the lid ring.
Assemble your jar and its done.
Keep it in your fridge to absorb odors.
Clean your sink too! After 30 days, it is recommended to replace baking soda in the fridge as it no longer absorbs odors. Why throw it away? Repurpose it! It is still great for cleaning!