I am living in india..I hav joined hostel run by non muslims..I have many doubts and face many problems as i hav never living among non muslim community before..1)They change the bed sheet daily and clean the room..should i allow it..?? 2) can i use the common washing machine or will my clothes will become najis as hindus also use the same 3) can i give my clothes to laundry ?? 4) can i give my clothes for dry wash  5 ) i recently gave some clothes to laundry and then when they gave me back i kept them under tap water to make them taahir..Can i do the same as i dont want to wash my clothes ?? 6 ) after giving my clothes to laundry and for dry wash if i put them under sun will they become taahir ?? 7) sun makes all things pure so if i allow non muslims to wash bed sheet and cook food  and then keep under sun.is it ok ?? Will sunlight make food snd sheet pure ??

There is no problem for u in all of above written questions,, the bedsheets and and the rooms became najis when it wash by Hindus,, but if u r dry then there is no problem, u can do your prayer in dry situation on that bedsheets, only your sajdagah must be paak,, when u r using the semi automatic washing machine first u should wash it then u can wash your clothes,,,, najis clothes never became paak by sun,, only non removeble things such a wall became paak by sun