What is a quick way to clean artificial flowers?

put them in the dryer on low heat with a damp washcloth for about 5 minutes

First take them outside and spray them with canned air. The pressurized air will blow most of the dust and dirt off. Start with the can a couple feet away, and then bring it closer until you get enough pressure to clear the dust off, but not too close to damage the flowers.

Put them in a bag with no leaks, put some coarse salt in with them and shake like mad.

Take them outside and use your hairdryer to blow the dust off.

I would NOT put them in the washing machine!! You can spray them with a hose spray at your sink or outside (weather permitting) with your garden hose spray. Lay on a large towel & allow to dry. OR : Put white rice in a large bag, place flowers upside down into rice, hold bag tight where flower stems start and shake well. Repeat as necessary.

It is really quick to just dip them into it a sink with dishwashing liquid swish around then rinse and set on a towel to dry. Anything else and you chance damaging them.

If you pit them in a washing mashing they will fall apart

I use dryer sheets sented