I bought a Hot steam cleansing machine... it say it can kill the insects, batercia etc....
It can use it in the carpet, bed, floor......
Osim has this cleaning machine but I bought one brand "Karcher" and it is cheaper than Osim.
Please do not use hot steam spray to clean mattress. Instead of cleaning, you will make it WORST!!! This is because the moisture will be trapped inside the mattress and will cause mildrew and bacteria to grow. You can use vaccum cleaner or Queen or Karcher only. But nothing WET directly on mattress, please.
You can try use the medicated anti-dust mites bedsheet. It will help with dust mites. But if it is fleas, you need to use the flea/tick spray which you buy from pet shops.
Oh..but is it ok to clean the sofa ? The first day I bought the hot steam spray, I cleaned all the furniture up include the sofa, mattress, blanket .....
Will it be better if I have the air conditioner on?