Discussions

I’m looking for suggestions on picking a good room air purifier, especially for a small bedroom where dust and pollen seem to build up quickly. There are so many models with HEPA filters, ionizers, and smart sensors that I’m not sure which features actually matter. How important is CADR when choosing one? Are there any reliable brands that run quietly at night? I’m also curious if compact purifiers are effective enough or if I should go for a larger unit. Do maintenance costs, like filter replacements, vary a lot? Lastly, has anyone noticed a real improvement in sleep quality or allergy symptoms after using a room air purifier?