there is a new air purifier in the market now.
from woongjin coway, a korean manufacturer.

features- 6 filtration system

1. Pre-static filter - removes large dust, particles, pet hair.
2. Medium anti-bacterial filter.
3. Nano-silver and catechin HEPA filter - 0.3 micron.
4. RBD plasma filter - removes gas, odor, airborne virus, bacteria.
5. Catalyst filter - removers Volatile Organic Compound(VOCs).
6. AC Deodorizing Filter with active carbon - generation quantity of ozone under 0.005ppm.

price very reasonable - RM3,100 with free service n filter change for 2 years.