I bought an Ioniser few years ago. And I am amazed how this product has gone beyond my expectations. My son had sinus problem for years and had to have an adenoctomy done that didn’t really work (He couldn’t sleep when it attacks so i put the ioniser in our room, after a day he felt really good and could sleep well, so we're using it up to now. The “dirt” that it collects is shocking I always imagine , it could be accumulating on our lungs if it wasn’t for the ioniser. Absolutely swear by this product. It works and it helps. 
– La To

The Ionmax ION401 air purifier is super easy to maintain and there is no need to replace filters.  
— Rebecca Smith