>>8601857First off take them outside and give them a good shake to get the larger part of the dust off. Then check the tags if they still have them for care instructions. Most modern plushies can safely take a trip tgrought the washing machine on delicate in a delicates bag/ pillow case.
I use woolite delicates (pic related) to clean all my thrift store plushies. Works great and doesn't leave them with a strong fragrance, just nice and clean.
Lastly after they've taken a spin in the washer pop them in the dryer (still in the delicates bag) on cool or low warm for however long it takes to dry them. Do not dry them on any kind of quick dry setting as that might make them hot and soften/melt any plastic eyes or noses.