Fruit flies!

Diggingdoris

You can get rid of fungus gnats easily. Strike a few matches then blow them out and push head down into compost. They don't like the sulphur.

Ooh, thanks. I'll try that. Mine are definitely fungus gnats, as they are in the sitting room where the plants are, not in the kitchen. They don't seem interested in fruit .

The type of fruit flies we get here in Australia are very,very destructive. They are wasp like in appearance. I’m not talking about the tiny little things you get when fruit is overripe. There are many different species.

Probably fungus gnats if you have plants around
Get some fish tank gravel and fill the top of the pot with it then the new babies cannot emerge they soon die out if they can’t get out the pot

If you do feel these tiny flies are on your house plants be sure to water them from the bottom only. Don’t water the top of the soil.
The flies thrive in the wet soils at the top of the pot.
I sprayed my problem plants with fly spray that got rid of the flies but didn’t damage the plant.