Floors, carpets, furniture, car upholstery and child's car seat should be vacuumed or cleaned thoroughly.
(Floors, carpets, furniture, car upholstery and child's car seat; should be vacuumed; ) (Floors, carpets, furniture, car upholstery and child's car seat; cleaned thoroughly; )
Floors, carpets, furniture, car upholstery and child's car seat Floors, carpets, furniture, car upholstery and child's car seat
should be vacuumed cleaned thoroughly