How to disinfect the bed?

Hello. Because this holiday is very long. Many students living in dormitories are covered with dust on their clothes, quilts and mattresses. First of all, the dormitory is cleaned in the most basic way, and the floor is disinfected with 84 disinfectant. Secondly, clothes, beds and quilts are exposed to the sun; Clothes and sheets are taken out and cleaned, and disinfected with disinfectant.