how big is your room.

i think panasonic one via lazada is 299. small one. quite ok. silent.

i bought that panasonic for my niece. Its one dust filter + one carbon filter. its ok for the price. enough for 10m2 and very quiet. i think it does the job well enough as removes dust and allergens as well as some minor odors. but if you are very sensitive then need a HEPA. if not, then its good enough. its also approved by British Allergy Foundation. its pretty small.

i have another sharp one FPE50 something or other. forgot. that one is hepa and very good. but thats pricier. but have more settings and bigger filter.

never used or read up about khind filter