I am currently using this air purifier.
Lux airclean 2000. I think about 20 years old or so.
I think this is just an air filter. Only use when there is smog/smoke/cooking. It still works and still in use. The problem is finding the replacement filter.
I am planning to get two house air purifier system.
1. For daily night use only, during sleep in bedroom.
2. Living room. Only smoke/smog cooking or outside. Replace the Lux air clean filter.
Both rooms are about 96 m square.
Criteria for both: able to find spare parts (filter replacement). I'm not going to subscribe to Coway/Cukoo, since I don't think it is worth it.
The only company I think is uniform design and resilient is Xiaomi. The rest seem to have lots of form factors and I am not sure will last long.
Any suggestions?
Recommendation of long term air purifier, Current air purifier Lux airclean 2000