We also considered a air purifier,but ended up just using our de-humidifier on the Air purifying setting ( apparently babys should have some humidity so dont de-humidify) It has two basic washable filters that remove the dust from the air but doesn't purify as such, even with the doors closed and aircons I still have to clean them of fibres and fluff.(maybe all the new clothes!).
As for what not to buy just yet - We bought a plastic laundry wash basin/tub as a bath as its 1/3 the size of a baby bath and cost almost nothing. and works fine- I still use it for quick washes and He is almost 7kgs.
I must agree with ladybug that you dont need so many clothes up front as we also gave away lots unworn.Everyone you know will give your newborn something so dont bother with toys etc till after the birth, when you see what you didn't get given.Good Luck and enjoy.
As for what not to buy just yet - We bought a plastic laundry wash basin/tub as a bath as its 1/3 the size of a baby bath and cost almost nothing. and works fine- I still use it for quick washes and He is almost 7kgs.
I must agree with ladybug that you dont need so many clothes up front as we also gave away lots unworn.Everyone you know will give your newborn something so dont bother with toys etc till after the birth, when you see what you didn't get given.Good Luck and enjoy.