Keeyboards.

[dr. d]

You may try to blow air into it.
- if you have a 2-way (suck/ blow) vacuum cleaner
- a large blower like the Giotto Rocket blower
- using a can of compressed air
- blowing really hard on the underside of the affected key.

If those didn't work, or the issue still randomly manifests itself, try using a contact cleaner.
Make sure to choose something that is inert to rubber and/or silicon.
Some solvents may bloat, shrink or dry out rubber or silicon.

masubukan nga.
we have this contact cleaner spray that we use for electronics hobby work.